A. wasn't playing

B. haven't played

C. hadn't played

例4. When I first met Bryan I didn't like him, but I __ __ my mind.

A. have changed

B. change

C. had changed

D. would change

例5. Tom __ __ in the library every night over the last three months.

A. works

B. worked

C. has been working

D. had been working

例6.（2015 福建高考）---Where is Peter? I can't find him anywhere.

---He went to the library after breakfast and __ __ his essay there ever since.

A. wrote

B. had written

C. has been writing

D. is writing

例7.（2014 江西高考）---Tony, why are your eyes red?

---I __ __ up peppers for the last five minutes.

A. cut

B. was cutting

C. had cut

D. have been cutting

例8.（2014 湖南高考）Since the time humankind started gardening, we __ __ to make our environment more beautiful.

A. try

B. have been trying

C. are trying

D. will try

基础演练

一. 用括号里所给动词的适当形式填空。

1. You know, I (look) for a job for three months, and this is my first formal interview.

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