5. They tried everything they could do to persuade her joining them, but in . A. vain B. use C. being D. waste ...

15. We saw him heading ____us, so we stepped aside. A. toward B. of C. to D. for ...

20. 8. We left the meeting, there obviously ______ no point in staying. A. were B. being C. to be D. having ...

8. 13 He wasn’t appointed chairman of the committee, ________ not very popular with all its members. A. to be considered B. considering C. being considered D. having considered ...

1. 20. During the process, great care has to be taken to protect the ______ silk from damage. A. sensitive B. tender C. delicate D. sensible ...

10. 18. If the building project _______ by the end of this month is delayed, the construction company will be fined. A. being completed B. is completed C. to be completed ...

2. 6. All the tasks _______ ahead of time, they decided to go on holiday for a week. A. been fulfilled B. having been fulfilled C. were fulfilled D. had been fulfilled ...

12. 15. They've already been given a 10% raise so why are they ________? A. disapproving B. dissatisfying C. complaining D. proposing ...

6. 6. He learned how to use sign language to ________ with deaf customers. A. connect B. contact C. communicate D. relate ...

17. 已知水星的半径是地球半径的0.4倍, 质量为地球的0.04倍, 设在地球上的重力加速度为g , 则水星表面上的重力加速度为 A. 0.1g B. 0.25g C. 4 g D. 2.5g ...