①she must be fifty（对划线部分提问）划线的是fifty②she must be reading（变否定句）③I think the woman can be the youngest of us.（变否定句）

①she must be fifty（对划线部分提问）划线的是fifty②she must be reading（变否定句）③I think the woman can be the youngest of us.（变否定句） she must be hungry,___she? she who must be obeyed He must be fifty,________?A.mustn't he B.can't C.must he D.mayn't he I think she must be crazy! It must be she‘s 还是 hers? She must be fat.(变成否定句) must will be 和will must be 哪个对 She must be ___ when she hears the new. She _____ fifty or so when I first met her at a conference.A.had been B.must be C.has been D.must have been尤其为什么不能选a..后面的时态不是过去式的么..那算在那个时候起已经50了有错.. Fifty dollars for such a T-shirt!You ( ) be joking A.must B.nedd C.may D.can it和that代替从句的区别,在括号中1.---In fact,youneedn't get a visa through a travel agent.---Can Ididn't know （that） before.2.---She'salready fifty.---You must be joking.She doesn't look （it）. She must be at least forty .为什么要在must前加be?must后加be 英语：I think she must be a teacher,___?怎么写?为什么不用must she呢？ She look pale.She （　）ill A.can　be　　B.must　be　C.should　be 50Ways to Leave Your Lover 王若琳唱的那首歌的意思?The problem is all inside your head she said to me The answer is easy if you take it logically I'd like to help you in your struggle to be free There must be fifty ways to leave your love I know that it must be my father.过去式应该是...I knew that it must have been my father.I knew that it must be my father.哪个对?我一直都认为第一句must have been 是对的但昨天我看见一句She knew that it must be the baker. over must forty be she连词成句