19. ______ was I ______ saw him last night at the concert.

A. It; where　　　 B. It; when　　　 C. It; that　　　　　 D. It; how

18.My son has changed so much that I could hardly _______ his voice on the phone.

A. hear　　　 B. realize　　　　　 C. recognize　　　　 D. find

17. Mr Blake _______ Shanghai in a few days. Do you know when the earliest plane _______ on Sunday?

A. is leaving; takes off　　　　　　　　 B. leaves; takes off

C. is leaving; is taking off　　　　　　　 D. leaves; is taking off

16. Two singers will hold a concert in Beijing this month: one is Cai Yilin, and _____ is Jay.

15. ---- Who do you think ______ an important part in their lives?

---- Friendship.

A. plays　　　　 B. takes　　　　　　 C. makes　　　　　 D. acts

14. All these gifts must be mailed immediately _______ in time for Christmas.

A. in order to have received　　　　　　 B. in order to receive

C. so as to be received　　　　　　　　　 D. so as to be receiving

13. The whole world was ______ when they learned that the quake had brought so much damage.

A. concerned　　 B. interested　　　　 C. shocked　　　　 D. frustrated

12. It was on a cold winter evening ______ his father left home and was never back.

A. where　　　 B. which　　　　　 C. that　　　　　　 D. when

11. The one and only thing I _______ is whether you take a good rest.

A. care for　　　 B. look for　　　　 C. care about　　　 D. look after

10.______ printed, this science fiction will be popular among the students.

A. Before　　　 B. Unless　　　　 C. When　　　　 D. Once