19. It is reported that 70% of people in China are ________ about the food security situation after so many

　accidents.

　 　 A. curious　　 　　 B. concerned　　 　C. cautious　　　 D. certain

18. ----People should stop using their cars and start using public transport.

　 ---- ________. The roads are too crowded as they are.

A. All right　　　 　　　　 B. Exactly　　 　　　　　 C. Go ahead　　 　　　 D. Fine

17. The manager of the hotel tried to make some adjustments about the quality of the service _______ the reactions of customers.

A．in return for　　　　　　 B．in charge of　　　　　　 C．in favor of　　　 　 　　　　　 D．in response to

16. ---I prefer to sleep and watch TV all day on Sundays.

　 ---That’s _______ I don’t agree. You should have a more active life.

A. how　　　　　 　　　　　　　 B. when　　　　　　 C. where 　　　　 　　 D. what

15. ---- An ant has two stomachs --- one for itself and one for others.

----Really? Quite interesting. I ________ anything about it.

A. don’t know　　 　　　　　　　 B. hadn't known　　　 　 C. haven’t known　　 　 D. didn’t know

14. ----I _______ thank you enough for what you have done for me.

　 ----You’re welcome.

　 　 A. can not　　　　　　　　　　 B. will not　　　　　　 　　 C. must not　　　　　　 　 　 D. may not

13. The boss has never expected that his secretary should ________ such an issue at the meeting.

　 　 A. bring in　　　　　 　 B. bring down　　　　 C. bring up　　　　 　　 D. bring about

12. The first decade in the 21st century is the one ________ many significant advances are made in China.

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

11. ----What beautiful flowers! Are they for me?

　 ----_________ I’m glad you like them.

　 　　 A. Well done!　 　　　　　 B. How did you know that?　 C. You guessed it!　 D. Got it.

10. Ladies and gentlemen, please fasten your seat belts. The plane _________.

　 　　 A. takes off　　　　　 B. is taking off　　　 　 C. has taken off　　 D. took off