精英家教網 > 初中英語 > 題目詳情
You have to stay behind if your homework         before five o'clock.
A．wasn’t doneB．hasn’t done
C．doesn't doD．isn't done
D

試題分析：句意：如果你在五點前沒有完成做業，你必須留下。stay behind留下；homework作業，只能被做，應為被動語態；根據have to可知為一般現在時 ，故選D.
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