题目内容
1.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 |
分析 我们得等到所有的准备工作都做好了才能开始工作.
解答 答案C.
are being 是现在进行时的被动形式;will be made 是一般将来时的被动形式;have been made是现在完成时的被动形式,用于强调动作产生的影响;had been made是过去完成时的被动形式.本题是主将从现的用法.主句是将来时时,从句用现在时或相当于现在的时态;现在完成时强调过去对现在的影响或动作从过去一直持续到现在.所以选C.
点评 掌握时态是非常的重要,要根据语境与分析选择合适的答案.
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