7. The unemployment rate in this district_______ from 6% to 5% in the past two years. (2007上海)

A. has fallen B. had fallen C. is falling D. was falling

6. -I have got a headache.

-No wonder. You_________ in front of that computer too long. (2007江西)

A. work B. are working C. have been working D. worked

5. Danny _________ hard for long to realize his dream and now he is popular. (2007福建)

A. works B. is working C. has worked D. had worked

4. Cathy is taking notes of the grammatical rules in class at Sunshine School, where she ______ English for a year. (2007湖南)

A. studies B. studied C. is studying D. has been studying

3. So far this year we _______ a fall in house prices by between 5 and 10 percent. (2008福建)

A. saw B. see C. had seen D. have seen

2. By the time he realizes he _________ into a trap, it’ll be too late for him to do anything about it. (2008山东)

A. walks B. walked C. has walked D. had walked

1. - I’m sure Andrew will win the first prize in the final.

- I think so. He ________ for it for months. (2008江苏)

A. is preparing B. was preparing

C. had been preparing D. has been preparing

5. Here he is! We ________ (wait) anxiously for him since last night.

C. Make the best choices.

4. I ________ (wonder) if you were free this afternoon.

3. The little boy is dirty all over because he ________ (play) in the mud all the morning.