情态动词的回答方式
问句 肯定回答 否定回答
Need yo u…? Yes, I must. No,I needn't
Must you…? /don't have to.
典型例题
1）---Could I borrow your dictionary?
---Yes, of course, you____.
A. might B. w ill C. can D. should
答案C.could表示委婉的语气，并不为时态 。答语中of course，表示肯定的语气，允许某人做某事时，用can和 may来表达，不能用could或might。复习： will 与you连用，用来提出要求或下命令。sh ould与you 连用，用来提出劝告。
2）---Shall I tell John about it?
---No, you ___. I've told him already. A. needn't B. wouldn't C. mustn't D. shouldn't
