【推荐1】There are many ________ (theory) about the origin of life. (所给词的适当形式填空)

【推荐2】His heart ________(operate) was a great success. (所给词的适当形式填空)

【推荐3】单句填空
1. The novel is much longer than that one, but it isn’t so interesting ______________ that one.
2. Those girls exercise every morning, aiming ______________ losing weight.
3. In the traffic accident, the _______________(survive) were all badly injured.
4. It was the first time that the expert _______________(see) his work in print.
5. The job market has changed and our approaches to _______________ (find) work must change as well.
6. My cousin went to Canada two years ago. He _______________ (work) there for a few months and then went to America.
7. _______________ conclusion, she wished her friends every success in their work.
8. -Shall I pick you up tonight?
-No, thanks. Don’t bother_______________ (come). I can take a taxi to the airport.
9. Her husband is _______________ (employ) and the family depends on charity (慈善).
10. The soldiers were very tired and the heavy rain added _______________ their difficulty.
11. -I’m sure David will win first prize in the final.
-I think so. He _______________ (prepare) for it for months.
12. Sarah made _______________ to the airport just in time to catch her plane this morning.
13. She remained _______________ (sit) there when we came in.
14. The information is so important that it is supposed _______________ (send) as soon as possible.
15. Where can I exchange my dollars _______________ pounds?