mayn't be ,can't be,mustn't be,shouldn't be的区别

mayn't be ,can't be,mustn't be,shouldn't be的区别 He must be fifty,________?A.mustn't he B.can't C.must he D.mayn't he I don’t _____ him.He _____ be serious.A.believe ; can’t B.believe in ; mayn’t C.believe ; can D.believe in ; must 英语翻译can‘t be can't be用法 you can't be friends It Can't Be 歌词 Why Can't I Be File can't be found! Love can't be compelled~ Sorry I can't be ‘’Can't be poened‘’是什么意思? May I come in?No,you _. A、mayn't B、can't can‘t be 和mustn’t be的用法 musn't be 和can't be的区别 存在can be/must be ,can’t be 而没有mustn't be 问五道高中英语语法题,1.Everything is not easy,____?A.isn't it B.is it不太懂2.The boy ought to be punished,____?A.ought to he B.should heC.ought not he D.ought not to he不太懂3.He may bring my books,____?A.mayn't he B.mustn't he C.can May I use your car?No,you A.can`t B.mayn`t C.needn`t选哪个