Please keep at least one language enabled. || కనీసం ఒక భాషను ఎంచుకోండి.
Question 1
ప్రశ్న 1
Which sentence correctly uses the simple past for a completed action at a definite past time?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'They visited the museum yesterday' correctly uses the simple past for a completed action at a definite past time.
• The word 'yesterday' clearly places the event in the past.
• 'Have visited' is not normally used with a finished past-time expression such as 'yesterday'.
• The word 'yesterday' clearly places the event in the past.
• 'Have visited' is not normally used with a finished past-time expression such as 'yesterday'.
వివరణ:
Question 2
ప్రశ్న 2
Choose the correct negative simple-past form: 'Ravi _____ the window last night.'
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'Did not open' is the correct simple-past negative form.
• In a negative sentence with 'did not', the main verb remains in its base form.
• 'Did not opened' is incorrect because the past marking is wrongly repeated on the main verb.
• In a negative sentence with 'did not', the main verb remains in its base form.
• 'Did not opened' is incorrect because the past marking is wrongly repeated on the main verb.
వివరణ:
Question 3
ప్రశ్న 3
Choose the correct simple-past question: '_____ Rina complete the assignment yesterday?'
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'Did' is the correct auxiliary for a simple-past question.
• After 'did', the main verb remains in the base form 'complete'.
• The word 'yesterday' confirms that the question refers to a finished past time.
• After 'did', the main verb remains in the base form 'complete'.
• The word 'yesterday' confirms that the question refers to a finished past time.
వివరణ:
Question 4
ప్రశ్న 4
What is the correct simple-past form of the verb 'write'?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'Wrote' is the simple-past form of the irregular verb 'write'.
• 'Written' is the past participle, used after auxiliaries such as 'has', 'have' or 'had'.
• 'Writed' is not the standard past form of 'write'.
• 'Written' is the past participle, used after auxiliaries such as 'has', 'have' or 'had'.
• 'Writed' is not the standard past form of 'write'.
వివరణ:
Question 5
ప్రశ్న 5
Choose the correct past-continuous form: 'At 8 p.m. yesterday, the students _____ for the test.'
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'Were studying' is correct because the sentence refers to an action in progress at a specific time in the past.
• The past continuous is formed with 'was' or 'were' plus the -ing form of the main verb.
• 'At 8 p.m. yesterday' makes the past point of time clear.
• The past continuous is formed with 'was' or 'were' plus the -ing form of the main verb.
• 'At 8 p.m. yesterday' makes the past point of time clear.
వివరణ:
Question 6
ప్రశ్న 6
Choose the correct form: 'I _____ dinner when the phone rang.'
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'Was eating' is correct because the eating was in progress when another past event interrupted it.
• The past continuous is commonly used for a longer background action interrupted by a simple-past action.
• 'When the phone rang' identifies the shorter interrupting event.
• The past continuous is commonly used for a longer background action interrupted by a simple-past action.
• 'When the phone rang' identifies the shorter interrupting event.
వివరణ:
Question 7
ప్రశ్న 7
Choose the pair that correctly shows two actions in progress at the same past time: 'While Maya _____ dinner, Arun _____ the table.'
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'Was cooking' and 'was setting' correctly show two actions in progress at the same past time.
• The conjunction 'while' supports the idea of simultaneous ongoing actions.
• The present continuous option refers to the present, while the past perfect option suggests earlier completed actions.
• The conjunction 'while' supports the idea of simultaneous ongoing actions.
• The present continuous option refers to the present, while the past perfect option suggests earlier completed actions.
వివరణ:
Question 8
ప్రశ్న 8
Choose the correct form to show that the train left before we reached the station: 'By the time we reached the station, the train _____.'
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'Had left' is correct because it marks an action completed before another past action.
• The later past action is 'we reached the station'.
• The past perfect is formed with 'had' plus the past participle, so 'had left' is the correct form.
• The later past action is 'we reached the station'.
• The past perfect is formed with 'had' plus the past participle, so 'had left' is the correct form.
వివరణ:
Question 9
ప్రశ్న 9
Choose the correct form: 'The students _____ the exercise before the teacher entered the classroom.'
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'Had finished' shows that the exercise was completed before the teacher entered.
• The teacher's entering is a past event, and the finishing happened earlier than that past event.
• 'Have finished' links to the present, while the sentence is organized around past-time sequence.
• The teacher's entering is a past event, and the finishing happened earlier than that past event.
• 'Have finished' links to the present, while the sentence is organized around past-time sequence.
వివరణ:
Question 10
ప్రశ్న 10
Which sentence correctly uses the past perfect form of 'eat'?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'She had eaten before the guests arrived' correctly uses 'had' plus the past participle 'eaten'.
• 'Ate' is the simple-past form, not the past participle required after 'had'.
• The sentence places eating before another past event, the guests' arrival.
• 'Ate' is the simple-past form, not the past participle required after 'had'.
• The sentence places eating before another past event, the guests' arrival.
వివరణ:
Question 11
ప్రశ్న 11
Choose the correct form: 'The passengers _____ for two hours when the bus finally arrived.'
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'Had been waiting' is correct because the waiting continued for a duration before another past event.
• The later past event is the bus finally arriving.
• The past perfect continuous is formed with 'had been' plus the -ing form of the main verb.
• The later past event is the bus finally arriving.
• The past perfect continuous is formed with 'had been' plus the -ing form of the main verb.
వివరణ:
Question 12
ప్రశ్న 12
Choose the correct expression: 'By the time the coach arrived, the players had been practising _____ two hours.'
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'For' is correct because 'two hours' expresses a duration.
• The sentence describes an activity that continued for a length of time before a later past event.
• 'Since' would require a starting point, such as 'since 6 a.m.', not a duration such as 'two hours'.
• The sentence describes an activity that continued for a length of time before a later past event.
• 'Since' would require a starting point, such as 'since 6 a.m.', not a duration such as 'two hours'.
వివరణ:
Question 13
ప్రశ్న 13
Choose the correct expression: 'When the bell rang at 9 a.m., the students had been waiting _____ 8:30 a.m.'
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'Since' is correct because '8:30 a.m.' is a starting point.
• The sentence means the waiting began at 8:30 a.m. and continued up to the later past point when the bell rang.
• 'For' is used with a duration, such as 'for thirty minutes'.
• The sentence means the waiting began at 8:30 a.m. and continued up to the later past point when the bell rang.
• 'For' is used with a duration, such as 'for thirty minutes'.
వివరణ:
Question 14
ప్రశ్న 14
Which sentence correctly forms the past perfect continuous?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'She had been working' correctly follows the structure 'had been' plus the -ing form.
• The phrase 'for an hour before the power failed' shows duration before a later past event.
• The other options contain incorrect auxiliary or verb forms.
• The phrase 'for an hour before the power failed' shows duration before a later past event.
• The other options contain incorrect auxiliary or verb forms.
వివరణ:
Question 15
ప్రశ్న 15
Which word group in the sentence 'The children were playing when it started to rain' is in the past continuous?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'Were playing' is in the past continuous.
• It is formed with 'were' plus the -ing form 'playing'.
• 'Started' is simple past, while 'to rain' is an infinitive phrase.
• It is formed with 'were' plus the -ing form 'playing'.
• 'Started' is simple past, while 'to rain' is an infinitive phrase.
వివరణ:
Question 16
ప్రశ్న 16
Which sentence contains a past-continuous verb-form error?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'I was watch television' is incorrect because the past continuous requires 'was' plus the -ing form.
• The corrected form is 'I was watching television when the lights went out.'
• The other options correctly use 'was' or 'were' plus an -ing form.
• The corrected form is 'I was watching television when the lights went out.'
• The other options correctly use 'was' or 'were' plus an -ing form.
వివరణ:
Question 17
ప్రశ్న 17
Which sentence uses the simple past correctly for a sequence of completed past actions?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• The sentence correctly uses simple-past verbs for a sequence of completed past actions: 'opened', 'entered' and 'switched'.
• Narrative sequences of completed past events commonly use the simple past.
• The other options mix incompatible tense forms within the same past sequence.
• Narrative sequences of completed past events commonly use the simple past.
• The other options mix incompatible tense forms within the same past sequence.
వివరణ:
Question 18
ప్రశ్న 18
Choose the correct past-perfect negative sentence.
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'He had not eaten before he took the medicine' correctly uses 'had not' plus the past participle 'eaten'.
• The eating is placed before another past event: taking the medicine.
• 'Ate' is the simple-past form and cannot replace the past participle after 'had not'.
• The eating is placed before another past event: taking the medicine.
• 'Ate' is the simple-past form and cannot replace the past participle after 'had not'.
వివరణ:
Question 19
ప్రశ్న 19
Which sentence uses the past continuous to describe a background action and the simple past for the shorter event?
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'The teacher was explaining the lesson when the bell rang' uses the past continuous for the background action.
• 'The bell rang' uses the simple past for the shorter event that occurred during the longer action.
• This is a standard contrast between past continuous and simple past.
• 'The bell rang' uses the simple past for the shorter event that occurred during the longer action.
• This is a standard contrast between past continuous and simple past.
వివరణ:
Question 20
ప్రశ్న 20
Choose the correct form: 'By 7 p.m., the workers _____ the damaged pipe, so water supply resumed.'
Select an option first. || ముందుగా ఒక సమాధానాన్ని ఎంచుకోండి.
Explanation:
• 'Had repaired' is correct because the repair was completed before the past reference point 'by 7 p.m.'.
• The result, water supply resuming, follows that completed earlier past action.
• 'Were repairing' would show an action in progress, not a completed repair before the stated past point.
• The result, water supply resuming, follows that completed earlier past action.
• 'Were repairing' would show an action in progress, not a completed repair before the stated past point.
వివరణ:
Answer Key సమాధానాల పట్టిక
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Question 1 ప్రశ్న 1Answer: B. They visited the museum yesterday. సమాధానం: B.
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Question 2 ప్రశ్న 2Answer: A. did not open సమాధానం: A.
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Question 3 ప్రశ్న 3Answer: B. Did సమాధానం: B.
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Question 4 ప్రశ్న 4Answer: C. wrote సమాధానం: C.
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Question 5 ప్రశ్న 5Answer: B. were studying సమాధానం: B.
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Question 6 ప్రశ్న 6Answer: A. was eating సమాధానం: A.
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Question 7 ప్రశ్న 7Answer: B. was cooking; was setting సమాధానం: B.
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Question 8 ప్రశ్న 8Answer: C. had left సమాధానం: C.
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Question 9 ప్రశ్న 9Answer: A. had finished సమాధానం: A.
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Question 10 ప్రశ్న 10Answer: B. She had eaten before the guests arrived. సమాధానం: B.
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Question 11 ప్రశ్న 11Answer: C. had been waiting సమాధానం: C.
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Question 12 ప్రశ్న 12Answer: B. for సమాధానం: B.
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Question 13 ప్రశ్న 13Answer: B. since సమాధానం: B.
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Question 14 ప్రశ్న 14Answer: C. She had been working for an hour before the power failed. సమాధానం: C.
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Question 15 ప్రశ్న 15Answer: A. were playing సమాధానం: A.
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Question 16 ప్రశ్న 16Answer: C. I was watch television when the lights went out. సమాధానం: C.
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Question 17 ప్రశ్న 17Answer: A. Ravi opened the door, entered the room and switched on the light. సమాధానం: A.
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Question 18 ప్రశ్న 18Answer: A. He had not eaten before he took the medicine. సమాధానం: A.
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Question 19 ప్రశ్న 19Answer: B. The teacher was explaining the lesson when the bell rang. సమాధానం: B.
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Question 20 ప్రశ్న 20Answer: A. had repaired సమాధానం: A.