Please keep at least one language enabled. || కనీసం ఒక భాషను ఎంచుకోండి.
Question 1
ప్రశ్న 1
According to the laboratory log, exactly 24 samples are finished and recorded so far today. Choose the form that focuses on this completed result: “The laboratory ___ 24 samples so far today.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• “So far today” refers to an unfinished period extending up to the present.
• The exact completed total of 24 samples makes the present perfect simple “has processed” appropriate because it focuses on result.
• The continuous form would focus on the processing activity rather than the stated number of completed samples.
• The exact completed total of 24 samples makes the present perfect simple “has processed” appropriate because it focuses on result.
• The continuous form would focus on the processing activity rather than the stated number of completed samples.
వివరణ:
Question 2
ప్రశ్న 2
The workers started repairing the leak two hours ago and are still working on it now. Choose the correct form: “They ___ the leak for two hours.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The repair began in the past and is explicitly still continuing at the present time.
• The present perfect continuous “have been repairing” emphasizes the duration of that ongoing activity.
• The simple present expresses habit, the present continuous lacks the past-to-present duration link, and the present perfect simple would focus more on completion or result.
• The present perfect continuous “have been repairing” emphasizes the duration of that ongoing activity.
• The simple present expresses habit, the present continuous lacks the past-to-present duration link, and the present perfect simple would focus more on completion or result.
వివరణ:
Question 3
ప్రశ్న 3
Choose the standard form: “I ___ this password since the account was created in 2022.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• “Since the account was created in 2022” gives the starting point of a state that continues to the present.
• “Know” is normally stative in this meaning, so the present perfect simple “have known” is standard.
• Continuous forms such as “am knowing” and “have been knowing” are not normally used for this stative meaning.
• “Know” is normally stative in this meaning, so the present perfect simple “have known” is standard.
• Continuous forms such as “am knowing” and “have been knowing” are not normally used for this stative meaning.
వివరణ:
Question 4
ప్రశ్న 4
Choose the standard preposition with the present perfect to mark the starting point of the continuing state: “The clinic has remained closed ___ Monday morning, and it is still closed.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• “Since” introduces the point in time at which a continuing situation began.
• “Monday morning” is a starting point, so “has remained closed since Monday morning” is standard.
• “For” normally introduces a duration, while “during” and “until” express different time relationships.
• “Monday morning” is a starting point, so “has remained closed since Monday morning” is standard.
• “For” normally introduces a duration, while “during” and “until” express different time relationships.
వివరణ:
Question 5
ప్రశ్న 5
At 9:55 every receipt was already checked and filed. The auditors arrived at 10:00. Choose the correct form: “By the time the auditors arrived, the accountant ___ all the receipts.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The checking was complete before the later past event of the auditors’ arrival.
• The past perfect “had checked” explicitly marks an action completed before another past reference point.
• The past continuous would indicate an action still in progress, while the present forms do not match the past-time sequence.
• The past perfect “had checked” explicitly marks an action completed before another past reference point.
• The past continuous would indicate an action still in progress, while the present forms do not match the past-time sequence.
వివరణ:
Question 6
ప్రశ్న 6
When the supervisor returned at noon, the technicians were exhausted and were still working. Choose the form that correctly links their ongoing activity to its 9 a.m. starting point: “They ___ the machine continuously since 9 a.m.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• “Since 9 a.m.” gives the starting point of an activity continuing up to the later past reference point at noon.
• The past perfect continuous “had been testing” correctly expresses that ongoing past-before-past duration.
• The past continuous does not normally combine with “since 9 a.m.” to express this completed reference-time relationship, while the simple and past perfect forms do not emphasize the continuing activity.
• The past perfect continuous “had been testing” correctly expresses that ongoing past-before-past duration.
• The past continuous does not normally combine with “since 9 a.m.” to express this completed reference-time relationship, while the simple and past perfect forms do not emphasize the continuing activity.
వివరణ:
Question 7
ప్రశ్న 7
At 7 a.m. the ground was still soaked, although the rain had stopped at 6. Choose the form that emphasizes the duration of the earlier activity as the cause of this result: “It ___ continuously for four hours before it stopped.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The question explicitly asks for emphasis on the duration of an activity occurring before a later past point.
• The past perfect continuous “had been raining” highlights the four-hour activity and its later result, the soaked ground.
• The simple past can report a past event, but it does not provide the requested duration-focused past-perfect-continuous viewpoint.
• The past perfect continuous “had been raining” highlights the four-hour activity and its later result, the soaked ground.
• The simple past can report a past event, but it does not provide the requested duration-focused past-perfect-continuous viewpoint.
వివరణ:
Question 8
ప్రశ్న 8
Choose the correct form: “By 5:00 p.m. tomorrow, the editor ___ all twenty pages, so printing can begin immediately.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• “By 5:00 p.m. tomorrow” sets a future deadline before which the checking must be complete.
• The future perfect “will have checked” expresses completion before or by that future reference point.
• The future continuous would describe an activity in progress, which conflicts with the stated completed result needed for printing to begin.
• The future perfect “will have checked” expresses completion before or by that future reference point.
• The future continuous would describe an activity in progress, which conflicts with the stated completed result needed for printing to begin.
వివరణ:
Question 9
ప్రశ్న 9
Which form best emphasizes the duration of an activity continuing up to a future point? “By next March, Devika ___ at this school for exactly fifteen years, and she plans to continue teaching there.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The question explicitly asks for emphasis on the length of an activity viewed from a future point.
• The future perfect continuous “will have been teaching” highlights the fifteen-year duration up to next March.
• The future perfect simple can present a future-to-past span, but it does not emphasize the ongoing activity and duration as directly as the requested continuous form.
• The future perfect continuous “will have been teaching” highlights the fifteen-year duration up to next March.
• The future perfect simple can present a future-to-past span, but it does not emphasize the ongoing activity and duration as directly as the requested continuous form.
వివరణ:
Question 10
ప్రశ్న 10
Choose the correct replacement for the incorrect verb phrase in “She has submitted the application yesterday.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• “Yesterday” is a finished past-time expression, so the simple past is required for this completed action.
• The correct sentence is “She submitted the application yesterday.”
• The present perfect is not normally used with a definite finished past time such as “yesterday,” and the other alternatives are incorrectly formed or change the voice.
• The correct sentence is “She submitted the application yesterday.”
• The present perfect is not normally used with a definite finished past time such as “yesterday,” and the other alternatives are incorrectly formed or change the voice.
వివరణ:
Question 11
ప్రశ్న 11
Choose the correct form: “Arun has ___ three chapters so far this week, and all three are complete.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The present perfect is formed with “has” plus the past participle of the main verb.
• “Written” is the past participle of the irregular verb “write.”
• “Wrote” is the simple past form, while “write” and “writing” do not complete the present perfect construction.
• “Written” is the past participle of the irregular verb “write.”
• “Wrote” is the simple past form, while “write” and “writing” do not complete the present perfect construction.
వివరణ:
Question 12
ప్రశ్న 12
Which question is correctly formed in the past perfect to ask whether the work was complete before the manager arrived?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• A past perfect question is formed with “had + subject + past participle.”
• “Had they completed ...?” correctly uses “had” before the subject and the past participle “completed.”
• The other options either use the wrong auxiliary or an incorrect verb form for the requested past perfect structure.
• “Had they completed ...?” correctly uses “had” before the subject and the past participle “completed.”
• The other options either use the wrong auxiliary or an incorrect verb form for the requested past perfect structure.
వివరణ:
Question 13
ప్రశ్న 13
Choose the correctly formed future perfect sentence for work that must be complete before noon tomorrow.
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The future perfect is formed with “will have” plus the past participle.
• “Will have completed” correctly expresses completion by the future deadline “noon tomorrow.”
• The other options contain incorrect auxiliary or participle forms and therefore do not form the future perfect.
• “Will have completed” correctly expresses completion by the future deadline “noon tomorrow.”
• The other options contain incorrect auxiliary or participle forms and therefore do not form the future perfect.
వివరణ:
Question 14
ప్రశ్న 14
Choose the correctly formed negative present perfect continuous sentence: “The server ___ properly for the past twenty minutes, and it is still malfunctioning.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The negative present perfect continuous is formed with “has/have not been” plus the -ing form.
• “Has not been responding” correctly describes an ongoing problem extending from the recent past to the present.
• The other options omit or misplace required auxiliaries or fail to use the -ing form correctly.
• “Has not been responding” correctly describes an ongoing problem extending from the recent past to the present.
• The other options omit or misplace required auxiliaries or fail to use the -ing form correctly.
వివరణ:
Question 15
ప్రశ్న 15
Choose the standard form: “By the time they became business partners in 2021, they ___ each other for ten years.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• Their state of knowing each other began before and continued up to the past reference point in 2021.
• “Know” is normally stative, so the past perfect simple “had known” is standard.
• Continuous forms with stative “know” are normally avoided, while the simple past does not mark the earlier-to-later past relationship as clearly.
• “Know” is normally stative, so the past perfect simple “had known” is standard.
• Continuous forms with stative “know” are normally avoided, while the simple past does not mark the earlier-to-later past relationship as clearly.
వివరణ:
Question 16
ప్రశ్న 16
Choose the correct preposition: “Mina has been practising the violin ___ six months, and she is still taking lessons.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• “For” introduces a duration, and “six months” is a length of time.
• The present perfect continuous “has been practising” appropriately describes an activity continuing over that duration to the present.
• “Since” would require a starting point rather than a duration, while “during” and “until” express different time relationships.
• The present perfect continuous “has been practising” appropriately describes an activity continuing over that duration to the present.
• “Since” would require a starting point rather than a duration, while “during” and “until” express different time relationships.
వివరణ:
Question 17
ప్రశ్న 17
The inspection confirms that every one of the four walls is completely finished. Which sentence focuses on that completed result?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The context emphasizes a completed result: every wall is now finished.
• The present perfect simple “have painted” naturally focuses on the completed outcome connected with the present inspection.
• The present perfect continuous focuses on the activity and does not itself present the completion of all four walls as directly.
• The present perfect simple “have painted” naturally focuses on the completed outcome connected with the present inspection.
• The present perfect continuous focuses on the activity and does not itself present the completion of all four walls as directly.
వివరణ:
Question 18
ప్రశ్న 18
Ravi’s clothes are covered in paint, and he says the fence is still unfinished. Which form best emphasizes the recent activity causing the visible evidence? “He ___ the fence all morning.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The visible paint and the unfinished fence point to a recent activity whose effects are evident now.
• The present perfect continuous “has been painting” emphasizes the activity over the period “all morning.”
• The present perfect simple would focus more strongly on a completed result, which conflicts with the explicit statement that the fence is still unfinished.
• The present perfect continuous “has been painting” emphasizes the activity over the period “all morning.”
• The present perfect simple would focus more strongly on a completed result, which conflicts with the explicit statement that the fence is still unfinished.
వివరణ:
Question 19
ప్రశ్న 19
All desks must be ready before the candidates enter at 9:00 tomorrow. Choose the correct form: “By the time the candidates enter, the staff ___ all the desks.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The desks must be completely arranged before the future reference point when the candidates enter.
• The future perfect “will have arranged” expresses completion before that future point.
• The future continuous would indicate activity still in progress, while the other forms do not express the required future completion.
• The future perfect “will have arranged” expresses completion before that future point.
• The future continuous would indicate activity still in progress, while the other forms do not express the required future completion.
వివరణ:
Question 20
ప్రశ్న 20
Which option correctly classifies the verb phrases in the three sentences? (1) “She has completed the report.” (2) “They had been waiting for two hours.” (3) “By June, he will have been working here for ten years.”
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• “Has completed” is present perfect because it uses present “have” plus a past participle.
• “Had been waiting” is past perfect continuous because it uses “had been” plus an -ing form.
• “Will have been working” is future perfect continuous because it uses “will have been” plus an -ing form.
• “Had been waiting” is past perfect continuous because it uses “had been” plus an -ing form.
• “Will have been working” is future perfect continuous because it uses “will have been” plus an -ing form.
వివరణ:
Answer Key సమాధానాల పట్టిక
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Question 1 ప్రశ్న 1Answer: C. has processed సమాధానం: C.
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Question 2 ప్రశ్న 2Answer: D. have been repairing సమాధానం: D.
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Question 3 ప్రశ్న 3Answer: C. have known సమాధానం: C.
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Question 4 ప్రశ్న 4Answer: B. since సమాధానం: B.
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Question 5 ప్రశ్న 5Answer: C. had checked సమాధానం: C.
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Question 6 ప్రశ్న 6Answer: D. had been testing సమాధానం: D.
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Question 7 ప్రశ్న 7Answer: C. had been raining సమాధానం: C.
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Question 8 ప్రశ్న 8Answer: C. will have checked సమాధానం: C.
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Question 9 ప్రశ్న 9Answer: D. will have been teaching సమాధానం: D.
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Question 10 ప్రశ్న 10Answer: A. submitted సమాధానం: A.
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Question 11 ప్రశ్న 11Answer: C. written సమాధానం: C.
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Question 12 ప్రశ్న 12Answer: C. Had they completed the work before the manager arrived? సమాధానం: C.
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Question 13 ప్రశ్న 13Answer: A. The team will have completed the inspection by noon tomorrow. సమాధానం: A.
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Question 14 ప్రశ్న 14Answer: A. has not been responding సమాధానం: A.
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Question 15 ప్రశ్న 15Answer: C. had known సమాధానం: C.
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Question 16 ప్రశ్న 16Answer: B. for సమాధానం: B.
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Question 17 ప్రశ్న 17Answer: C. The painters have painted all four walls. సమాధానం: C.
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Question 18 ప్రశ్న 18Answer: D. has been painting సమాధానం: D.
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Question 19 ప్రశ్న 19Answer: C. will have arranged సమాధానం: C.
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Question 20 ప్రశ్న 20Answer: A. (1) present perfect; (2) past perfect continuous; (3) future perfect continuous సమాధానం: A.