题目内容
15.---Could you go to the bookshop with me?I want to buy The Grass House by Cao Wenxuan.---Sorry,I____.I've promised Mum to go home right after school.( )
| A. | can't | B. | couldn't | C. | needn't | D. | mustn't |
分析 --你能和我一起去书店吗?我想买曹文轩写的《草房子》这本书.
--抱歉,我不能.我已经答应妈妈放学后马上回家了.
解答 答案:A.
can't不能,couldn't不能,couldn't 是could的否定式,表推测时,它并不是过去式,只是在语气上比can't委婉;needn't不必;mustn't不可以.根据Could you go to the bookshop with me?可知这里表示一种意见或者建议,它的否定回答一般用can't来回答,表示不能.故选A.
点评 本题考查了情态动词的用法.解答时注意了解句意以及所给选项的意思并作出正确选择.
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