5.Bruce must have been in China for a long time,_____?A.hasn’t he B.mustn’t he C.Isn’t he D.wasmust have been 表示对过去事实的肯定猜测,本题为什么选A而不选D5.Bruce must have been in China for a long time,_____?A.hasn’t he

bruce,you must be c_____ with your homework you often made so many mistakes 5.Bruce must have been in China for a long time,_____?A.hasn’t he B.mustn’t he C.Isn’t he D.wasmust have been 表示对过去事实的肯定猜测,本题为什么选A而不选D5.Bruce must have been in China for a long time,_____?A.hasn’t he must be must have done 区别 must be,must和have be,have的区别 must be和must have be有什么区别谢谢 Bruce be have to是否等于must to must have been done/must be done求解两者异同 must have done和must be的区别?权威 must be done和 must have done区别 must be和must have been有什么区别he must have been sleeping.为什么这里要用must have been而不用must be be,must be,can't have been,must have been吗 i must have a ipad 对还是i must be have a iPad 正确?哪个对? 两个英语单项选择题目1、It is thought that a new system _____ the place of the old one in that company.But things are getting worse and worse.w.w.w.k.s.5.u.c.o.mA.must have taken B.will take C.won’t take D.had taken2、Bruce _________his 用must,have to填空：We____ be strict with ourselves. What we have lost somewhere must be found somewhere else. Mary must ______lessons. A.has B.have c.be why i must we have to be alive?