-Must I finish writing the report today?-No．You if you have something else to do．( )A．can'tB．couldn'tC．mustn'tD．don't have to 题目和参考答案——青夏教育精英家教网—

题目内容

14．-Must I finish writing the report today？
-No．You _______ if you have something else to do．（　　）

A．

can't

B．

couldn't

C．

mustn't

D．

don't have to

分析 --今天我必须写完这个报告吗？
--不，你不必，如果你有其他事要做的话．

解答答案：D．
根据No，可知下面为否定回答，must的含义是必须一定，其否定形式mustn't表示禁止的含义．在这里不是禁止的意思．must的否定回答一般可借助于needn'和don't have to来构成，表不必．故选D．

点评题考查了情态动词的用法．注意must的用法以及它的肯否定形式．

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