He can't be at school, ____ ? A.is he B. isn't he C.can he D.can't he 选哪个?为什么?

he can't be at school反义疑问句he can't be at school.反义疑问句 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 school,___?A.is he B.isn't he C.can he D.can't he He can't be at school, ____ ? A.is he B. isn't he C.can he D.can't he 选哪个?为什么? .He can't be at school,____ A.is he B.isn't he C.can he D.can't he请帮忙解释为什么选A. 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 isn't at school .I think he ( )be ill.can,shall,must,has to ,原因. He can't be at home.He went to the cinema.合并成一句话 he can't be her father,-----he? 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? 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 isn't at school.i think he ------be ill A.has to B.shall C.can D.have to ---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 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 can't be at school 为什么要用”be“ 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.