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

英语翻译the two we used to have were very small and slow.they are now gone,and we are got much more efficient ones They live on,even when we are gone翻译 They live on,even when we're gone.What Are 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 we are leaving now. We are ----(放松) now They live on,even when we gone. Have Tack gone to the library?Neither Jack nor his friends(are)there.They are at home now.请问括号里为什么用are?为什么不用have benn? Where are the Greens,may I ask?Well,they to England,They there for nearly a week now.Where are the Greens,may I ask?Well,they to England,They there for nearly a week now.A,have been,have been,B,have been,have gone.C,have gone.have been,D,have gone.ha 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? What are they( )(do)now They are talking____the film now. They are both late now they are ____ vacation now Now they have gone into east and south Asia. We have bags ____ all colors.They are on ___ now.横线处该填什么 when they are gone,they are gone for 这是不是一句谚语 we are mending it now