He must be anxious to succeed this time,______?A.is he B.musn't he C.isn't he D.needn't heThe murderer must have left not long ago,_____?A.didn't he B.did he.C .has he D.hasn't he

He must be anxious to succeed this time,______?A.is he B.musn't he C.isn't he D.needn't heThe murderer must have left not long ago,_____?A.didn't he B.did he.C .has he D.hasn't he He must be ill ,for he isn't here. He must be fifty,________?A.mustn't he B.can't C.must he D.mayn't he He must be still there,____ A.mustn't he,B.isn't he C.must he.D.is heHe must be still there,____ A.mustn't he,B.isn't he C.must he.D.is he He must be ill,___he doesn’t come to school. He must be playing computer games at home,isn't he,为何用isn't he? he must ( )here.《be》 He must be happy! be anxious for 还是be anxious about be anxious to be anxious to do can't be 和 must’t be有什么区别?比如，he can't be here.he mustn;t be here 有什么区别？ He must be feel terrible,_____(反意疑问句）A.isn't he B.doesn't he C.mustn't he D.can't he he must be a writer ,__?A mustn't he B can't he C isn't he Dwasn't he Our teacher must be in his office,A mustn't he B can't he C isn't he D must He isn't at school .I think he ( )be ill.can,shall,must,has to ,原因. 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 1.He ___ Mr.Black.He is taller.(用can't,can't be,must,must be,don't have to,1.He ___ Mr.Black.He is taller.(用can't,can't be,must,must be,don't have to,needn't其中的一个填空,请说明一下选这个词的理由)2.You can _______ the teacher