They must have gone there two days ago,did not they?We must go right now,need not we?二句都有must,为何反义疑问句的句末不一样呢?did not they?与need not we?

the classroom is empty.I think they( )to the library.A.should have gone B.must go C.must have gone D.may go There is none here,they must have gone to school意疑问句是什么 They must have gone there two days ago___?改成反义疑问句 she must have been forty.变反意疑问句!They must have seen the film.反意疑问句The old man must have been a Swedish.否定句My father must have gone to work.反意 there is no light in the dormory(宿舍).They must have gone to the lecture,___?A.didn't they B.haven't they They must have gone there two days ago,did not they?We must go right now,need not we?二句都有must,为何反义疑问句的句末不一样呢?did not they?与need not we? where have they gone?答语急呀 They have gone to Xi'an,___(have) they? they must have gone to the concert,后面是什么,mustn't they?这是英语的什么,部分否定?忘记了, There is no light in the dormitory.They must have gone to the lecture_____1.didn`t they2.don`t they3.mustn`t they4.haven`t they要原因 Now they are gone.We are all surprised that they ____ so soon.a should leave b must have left c must leave d should have left选C 为什么?不好意思，是选D The classroom is empty.They must have gone to the sports ground,_________?A don't they B didn't they C haven't they D hadn't they 为什么They have come.come是原形而They have gone.gone就不是原形 they have gone there 变被动they have gone there 变被动 英语反意疑问句填空1)They must have gone there last night,___ ___?2)They must have arrived by now,___ ___?3)The room must have been cleaned yesterday,___ ___?4)The room must have been cleaned,___ ___? The computer doesn't work well,so something ____wrong .A.can have gone B.should have gone C.must have gone D.ought to have gone There is no light in the dormitory.They must have gone to the lecture_____There is no light in the dormitory.They must have gone to the lecture,_____?1.didn`t they4.haven`t they选4 为什么 1不可以啊? there is no light in the dormory(宿舍).They must have gone to the lecture,___?A.didn't they B.haven't they答案是B可是为什么啊