You must have seen geese before.But did you know why they fly in a "V"formation?大神帮我看看这句话有什么错误

you must have seen her yesterday 改为反义疑问句 have you seen anything Have you seen John? You mustn't smoke here ,_____ ______?They must have seen the movie yesterday,____ ____? “Have You Ever Seen Me? Have you ever seen snow? Since I have seen you Where have you seen them? have you seen的意思 Have You Seen Her 歌词 have not seen you ages what emergencies you have seen I HAVE NOT SEEN YOU , 反意疑问句You must have seen the play last week,____you 同题...是haven't还是 didn't? You _____ not have seen her yesterday,for she was abroad.A.must B.should C.could D.would You must have seen him off yesterday,A.haven't you B didn't you C.musn't you D needn't you答案选 初中反义疑问句You must have made a mistake,haven’t you?　　They must have seen the film last week,didn’t they?为什么同样是表推测的完成时,第一个用have,第二个用did 选择You __ not have seen her yesterdays for she was abroad.You __________ not have seen her yesterdays for she was abroad.A.must B.shouldC.could D.would选什么?四个答案有什么区别?