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题目
-Must I wait for you here now?-No,you ___,You may be back in haif an hour.
A.don't have to B.mustn't
C.can't D.shouldn't
选什么 为什么

提问时间:2021-04-01

答案
A
must 开头的疑问句,否定用needn't = don't have to
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