题目内容
17.-May we leave the classroom now?-No,you .You to leave until the bell rings.( )
| A. | may; are allowed | B. | mustn't; won't be allowed | ||
| C. | don't have to; are allowed | D. | needn't; aren't allowed |
分析 --我们现在可以离开教室吗?
--不,你不可以.直到铃声响了你才被允许离开.
解答 答案:B.
根据May we leave the classroom now,可知本句考查了以may引导的一般疑问句,而以may开头的一般疑问句其否定回答一般用mustn't表不可以;until通常和not连用,而且until引导的句子从句用一般现在时,主句用一般将来时,在这里you是动作allow的承受者,所以句子用被动语态,一般将来时的被动语态的构成:will be+动词过去分词.故选B.
点评 本题考查了情态动词的用法.熟知句意以及所给选项的意思是解答本题关键.
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