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30. The new engine ____________ right now will be used to be fixed in the new type of airplane soon.

A. to be experimented on　　　　　　　　　　　　　　　　　　　　　　　　 B. being experimented on

C. having been experimented on　　　　　　　　　　　　　　　 D. experimented on

29.　 ________ was what he had never expected and was just too upsetting to him.

A. Cheated again and again　　　　　　　　 B. Having been cheated again and again

C. Having cheated again　　　　　　　　　　　 D. Being cheating again and again

28._______ the right decisions ________ the future is probably the most important thing we'll ever do in our lives.

A. Making; concerned　　　　　　　　　　　　 　 B. Make; concerning

C. To make; concerned　　　　　　　　　　　　 　 D. Making; concerning

27. John did quite well in his exams, ________ how little he studied.

A. consider　　　　　　　 B. considering　　　　　 C. considered　　　　　 D. to consider

26. _____ two years to ________after the sick woman, she badly needed a holiday.

A. Devoting herself; look　　　 　　　　　　　B. Devoted; looking　　

C. Devoting; looking　　　　　　　　　　　 D. Devoted; looked

25. The answer ______ the teacher, she asked the little boy to try a second time.

A. disappointed　　　　　 B. disappointing　

C. being disappointed　　 D. having been disappointed

24. I found an old pot _____ in the ground.

A. buried　　　　　　　 B. being buried　　　　 C. burying　　　　 D. to be buried

23. ________ himself with great strength, he raised himself.

A. Filled　　　　 B. To fill　　　　　 　C. Being filled　　　　 D. Filling

22. Finally they managed to find a path _______.

A. to follow　　　 B. following　　　　　 C. to go　　　　　 D. going

21. The largest collection, ______in England , was one of about 200 000 silver pennies.

A. to be found　　　　 B. has found　　　　　 C. being found　　　　 D. ever found