20. It was already 11 o’clock in the evening 　　　they arrived at the hotel.

A. when　 B. before　 C. that　 D. since

19. -What do people wear when they go to the theatre?

　 -Well, is isn’t very　　　 .People can wear anything they like.

18. You may give this message to　　　 is in the office.

A. who　 B.easy　 C.modern　 D.certain

17．Most hotels in Sanya were full during the Spring Festival, but finally

we　　　 find a room in a small guesthouse near the seaside.

A. ought to　 B.could　 C.might　 D.were able to

16. Now many people　　　 higher degrees probably finish up nowhere when they try to get a highly-paid job.

A. with　 B. in　 C. for　 D. at

15. Nowadays with the development of science, more and more new technology 　　　to the fields of IT.

A. has introduced　 B. was introduced　 C. will introduce　 D. is being introduced

14. From the school name 　　　on the package, we guessed that it might belong to a student of our school.

A. to mark　 B. marking　 C. marked　 D. having been marked