7. George has sent some texts and pictures to his friend’s cell phone.

___________________________________________________

6. They have interviewed several teachers for the job.

___________________________________________________

5. This company has produced new types of computers.

___________________________________________________

4. We have completed all the preparations for the task, and we’re ready to start.

___________________________________________________

3. I have read this book many times.________________________________________________

2. She has told me about the story.__________ ______________________________________

例子：主动：I have finished my homework.　　　 被动：My homework has been finished.

1. Mary has locked the door.　 ___________________________________________________

15. A clean environment can help the city bid for the Olympics, which ______ will promote its economic development.

A. in nature　　 B. in return　　 C. in turn　　 D. in fact

14. It can’t be a(n)_______ that three banks were robbed in one night.

A. incident　　 B. accident　　　 C. chance　　 D. coincidence