1.Excuse me. ____you____my dictionary?I can't find it. 选D
A.Do,see B.Did,see C.Are,seeing D.Have,seen
2.Lily was dancing,while Jim___the piano.选B
A.played B. Was playing C.were playing D.plays
3.These inventions are very important and __the world.选C A.is going to change B.has changed C.have changed D.has changing
4.Have they written to each other___?选A
A.recently B.already C.last month D.two weeks ago
5.The famous scientists ____Beijing two days ago. 选C A.arriced B.have got to C.left D.have been away from
6."How long have you known Jack?" "---"选B 。A.Tow year ago B.Since 1999 C.For two years ago D.In 1999
7.We had planted (plant)many trees during the last 3 years. 为什么用had planted
8.Spring in China lasts(last)from February to April.为什么用lasts
9.When did you came here(come)?为什么用did …came? I came(come)when I was five years old .为什么用came?
10.By the time they got there ,the bus had left(leave)already.为什么用had left?
11.She has just gone(go)out.为什么用has…gone?