题目内容
5.Must I help you do the cooking,mum?Err…I can do it myself.You _______help me.( )
| A. | can't | B. | mustn't | C. | shouldn't | D. | needn't |
分析 --我必须帮你做饭吗,妈妈?
--呃…,我能自己做.你不必帮助我.
解答 答案:D.
shouldn't不需要;needn't不必;can't不可能;mustn't不可以.根据I can do it myself.我能自己做,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,表示不必.故选D.
点评 本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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