题目内容
She _________ more than 16,since she still wore her hair in a plait.
[ ]
A.could not have been
B.mustn't be
C.mustn't have been
D.can't be
答案:A
解析:
解析:
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该题考查“情态动词+不定式完成式的用法” .“couldn't + have +过去分词”有时表示无论如何也不可能做到.答案为A.例如:I could not have called you.I wasn't near a telephone. 反正我也不可能给你打电话,我附近没有电话. He can't/couldn't have watched TV yesterday, for he knew they would have an exam.昨天他不可能看电视,因为他知道快要考试了. |
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