现在完成时练习

1.Our country _ a lot so far . Yes . I hope it will be even _ . . has changed well . changed good . has changed better . changed better 2.Zhao Lan _already _in this school for two years . . was studying . will study . has studied . are studying 3.Both his parents look sad . Maybe they _whats happened to him . . knew . have known . must know .will know 4.Harry Potter is a very nice film .I_ it twice . .will see .have seen .saw .see5.These farmers have been to the United States . Really ? When _ there ? . will they go . did they go . do they go . have they gone 6._ you _ your homework yet ? Yes . I _ it a moment ago . .Did do finished .Have done finished . Have done have finished . will do finish7. His father _ the Party since 1978 . . joined . has joined . was in . has been in8.Do you know him well ? Sure .We _ friends since ten years ago . . were . have been . have become . have made9.Hurry up! The play _ for ten minutes . has begun . had begun . has been on . began 10. Miss Green isnt in the office . she_ to the library . .has gone . went .will go . has been 11._has Mr White been a member of Greener China since he to China? A. How soon, comes B. How often, got C. How long, came D. How far, arrived