题目内容
2. We won't start the work until all the preparations .
A. are being made
B. will be made
C. have been made
D. had been made
2. C考査动词的时态和语态。句意:直到所有的准备工作都做完了 ,我们才开始工作。根据主句中的关键词won't start (不会开始)是一般将来时,可知until引导的从句用一般现在时代替一般将来时。如无一般现在时,可用现在完成时代替一般将来时,强凋从句动作的完成性。
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