he can't be at home与he may not be at home有什么不同?跪拜请求指点迷津.

he can't be at home与he may not be at home有什么不同?跪拜请求指点迷津. He can't be at home.为什么can't后要加be? He can't be at home.为什么在at前面有be?什么情况下要加Be? Today is Wednesday.He _______be at home.He ______ be at school.A.can’t,can B.can’t,must C.mustn’t,must D.mustn’t,can He can't be at home.He went to the cinema.合并成一句话 ---Where is your brother?Is he at home?---No,he_____ be at home.He has gone to England.A.must B.mustn’t C.can’t D.may Bob must be at home,________?A.mustn't he B.can't he C.isn't he D.doesn't he 选哪一个?为什么? can't be at home可以转换成can't stay at home吗 Today is Wednesday.He _______ be at home.He _____ be at school.A.can’t,can B.can’t,must C.mustn’t,must D.mustn’t,can he can't be at school反义疑问句he can't be at school.反义疑问句 关于He can't be at home,isn't he?此句是否为反义疑问句?请问和He isn't at home,isn't he?有什么关系?为什么?也请解释一下“can't”在此处的意思.He must be a doctor,isn't he?You must have studied English for three years, Bob____at school.He is at home.【can't,isn't,aren't,don't,doesn't】 He must be playing computer games at home,isn't he,为何用isn't he? Tom _______(can’t/mustn't) be at home .he said he would go to Lily‘s party in the afternoon.如题,请讲一下理由. Simon _____ be at home .He is on the playground.A.can't B.mustn't C.may not D.isn't simon --- be in the classroom.he'sill and stays at home.A.isn't B.mustn't C.may not D.can't 情态动词could与must表推测时反意疑问句一样吗.He must be at home,isn't he 但He could be at home还是He could be at home ,isn't he 若句中不是be而是实义动词呢,试例子： There can't be anyone at home,___?A.is thereB.can therewhy we choose A