情态动词mustn't和can't有什么区别?
情态动词mustn't和can't有什么区别?
情态动词的can't和mustn't的区别
can't和mustn't有什么区别
can't和mustn't有什么区别?
情态动词can't have done 和couldn't have done 有什么区别吗
may的否定回答mustn't和can't有什么区别
must not 和mustn't有什么区别?还有can't和can not有什么区别?
根据语境,用can,may,might,can't,must,mustn't等情态动词填空
请问情态动词的用法,请问情态动词,may,be able to,can't ,mustn't,might,have(ha
情态动词may的否定回答是mustn't还是can't
用适当的情态动词can,may,must,mustn’t,needn’t填空
mustn't和can't