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