16. Having a trip abroad is certainly good for the old couple, but it remains _______ whether they will enjoy it.
A. to see B. to be seen C. seeing D. seen
17. The research is so designed that once _______ nothing can be done to change it.
A. begins B. having begun C. beginning D. begun
18. It is said that in Australia there is more land than the government knows _______.
A. it what to do with B. what to do it with
C. what to do with it D. to do what with it
19. A cook will be immediately fired if he is found _______ in the kitchen.
A. smoke B. smoking C. to smoke D. smoked
20. She looks forward every spring to _______ the flower-lined garden.
A. visit B. paying a visit C. walk in D. walking in
21. When I handed the report to John, he said that George was the person _______.
A. to send B. for sending it C. to send it to D. for sending it to
22. —What do you think made Mary so upset?
—_______ her new bike.
A. As she lost B. Lost C. Losing D. Because of losing
23. The lady said she would buy a gift for her daughter with the _______.
A. 20 dollars remained B. 20 dollars to remain
C. remained 20 dollars D. remaining 20 dollars
24. There are five pairs _______, but I’m at a loss which to choose.
A. to be chosen B. to choose from
C. to choose D. for choosing
25. _______ in 1636, Harvard is one of the most famous universities in the United States.
A. Being founded B. It was founded
C. Founded D. Founding
26. Fishing is his favorite hobby, and _______.
A. he’d like to collect coins as well B. he feels like collecting coins, too
C. to collect coins is also his hobby D. collecting coins also gives him great pleasure
27. Finding her car stolen, _______.
A. a policeman was asked to help B. the area was searching thoroughly
C. it was looked for everywhere D. she hurried to a policeman for help
28. In order to gain a bigger share in the international market, many state-run companies are striving _______ their products more competitive.
A. to make B. making C. to have made D. having made
29. Though _______ money, his parents managed to send him to university.
A. lacked B. lacking of C. lacking D. lacked in
30. There is a new problem involved in the popularity of private cars _______ road conditions need _______.
A. that; to be improved B. which; to be improved
C. where; improving D. when; improving