She must have been tricked 是否确的说法吗?用have还是用has 为什么?

She can't have been Danish. and She must have been Swedish. She didn't hear the phone.She ___ asleep.A may be B must be C should have been D must have been I think she was old.我认为她原来是老的?I don't think she was.She can't have been old.She must have been young.这怎么翻译I think it was cheap.I don't think it was.It can't have been cheap.It must have been expensive.同上.最好将语 be,must be,can't have been,must have been吗 Your dream will come true.She must have been wonderful. she must have been ill.------she didn come to school yesterday .A for B because C since D as为什么用FOR 不用BECAUSE? 新概念1第130课课后练习,i think she was Danish(Swedish)I don't think she was.She can't have been Dashin.She must have been Swedish.这个不是怪怪的吗?什么叫做那时肯定是瑞典人,那现在不是了?不能直接说She must be Swe 一道完成句子she knows this place so well ,she (must have lived) here.为什么不用must have been lived? can't have been和must have been每一个的用法 must have been和can't have been和现在完成时有没有联系啊 用must have been/done或can*t have been/done 改写句子 can't have been和can' have done有什么区别或者must have been和must hane done;may have been和may have done must have been done must have done must have/ must have been的区别 MUST have been donemust have been doing must have been +名词must have done以上的区别还有是否有must have been done 的用法 和区别EG1 I must have been sleeping 2 your dress must have been expensive.3 I didn't hear the phone,I must have She must have been a beauty in her day.这句的have been 怎么理解啊,不懂.have been 不是后面+done 所有的have been. You ____ her in her office last Friday; she's been out of town for two weeks.A.needn't have been B.must have been C.might have been D.can't have been怎么看这里用不用虚拟呢? He can't find his key.He ---------- them.A.must lost B.must have been lost C.must have lost