题目内容
5.-What's wrong with you,Joyce?You look tired.-I sleep well last night.( )
| A. | can't | B. | mustn't | C. | couldn't | D. | needn't |
分析 --你怎么了,Joyce?你看起来很累.
--我昨晚没睡好.
解答 答案:C.can't不可能;mustn't不可以,禁止;couldn't不可能,can't的过去式;needn't不必.根据last night,可知这里是一个表示过去时间的时间短语,时态上应该用一般过去时,在这里表示昨晚不能睡得很好.couldn't不能,can't的过去式形式.故选C.
点评 本题考查了情态动词的用法.意区分和辨别题意以及所给选项的意思,从而正确选择即可.
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