Ali __________ studying until he __________ all the exam topics.
- Did not stop, covered
- Had not stop, cover
- Did not stop, cover
- None of these
Explanation
"Did not stop" is the correct past tense form of the verb "stop".
"Covered" is the simple past form that matches the sequence of past events.
This sentence follows the structure of two completed actions in the past.
Correct sentence:
"Ali did not stop studying until he covered all the exam topics."
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- In
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اس سوال کو وضاحت کے ساتھ پڑھیں
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اس سوال کو وضاحت کے ساتھ پڑھیں
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