题目内容
13．--Must I leave the room now？--No，you ．（ ）
| A． | needn't | B． | can't | C． | mustn't | D． | couldn't |
分析 --我现在必须离开房间吗？
--不，你不必．
解答 答案：A．needn't不必；can't不可能；mustn't禁止；couldn't不可能．根据Must I leave the room now，可知这里是must引导的一般疑问句，在英语中must构成的一般疑问句，否定回答通常用needn't或don't have to，故选A．
点评 本题考查了情态动词的用法．解答时注意：在英语中must构成的一般疑问句，否定回答通常用needn't或don't have to．
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