13．________ I cannot understand is ________ she wants to resign her present job.

　 A．What; why 　　 B．Which; how　　 C．That; why 　　　 D．What; which

12．_______ most children nowadays are the only children, they tend to be more self-centered.

　 A．Ever since　　　　 B．Now that　　　　　 C．Only if　　　　　　　 D．Even though

11．The middle-aged man said he would accept the job, so we have asked him to ________ his acceptance in writing.

　　　 A．confirm　　　　　　 B．convey　　　　　　 C．convince　　　　 D．consider

10．__________ the clouds, you would find the airplane in the sky easily

　　　 A．Had it not been for　　 　　　　　　　　 B．If it were not　

　　　 C．If it had not been for　 　　　　　　　　 D．Were it not for

9．My toothache is killing me．I _____ it _____ away．But now it’s getting worse and worse.

　 　 A．think; is going　　　　 　　　　　　　 B．thought; was going　 　　　

　 C．have thought; is going　　 　　　　 D．had thought; had gone

8． -Jack, this is the third time that you have been late this week.

-Sorry, sir, but I was_____ for 15 minutes on the way here in the traffic jam.

　 A．held up　　 　　 B．put up　 　　　　 C．taken up　 　　 D．given up

7．-______ I lock the lab before I go home?

-Don’t bother．I’ll check it myself later.

　 A．May　　 　　　　 B．Must　　　　　　　　　 C．Can　　　　　　　　　 D．Shall

6．-I　got　an　email　from　Susan, _　 __　said　she　was　going　abroad　for　sightseeing.

-Fantastic!　That’s　what　she　has　been　dreaming　of.

　　　 A．which　　　　　　　 B．she　　　　　　　　 　　　　　　　　　　　　　　　　 C．who　　　　　 D．it　

5．I’m not sure whether I will have anything else to do this evening．_____, I will try every possible means to come to your birthday party.

　　　 A．Even though 　 B．If so　 　　　　　　 C．Anyhow　 　　　 D．Instead

4．We needed a new cupboard for the kitchen．So Peter made _____ from some wood we had. 　 　 A．it　　 　　 　　　　　 B．one　　 　　 　　　 C．himself　　　 　　 D．another