情态动词一般疑问句否定回答的情态动词和疑问词不同例如must i...no you do not have to

问题描述:

情态动词一般疑问句否定回答的情态动词和疑问词不同
例如must i...no you do not have to

在情态动词直接加not

May I come in?No,you can't.Must he wait here?No,he needn't.Could you help me?Sorry,I can't.Might she drop it?No,she can't.Would you please open the door?Sorry,I can't.