1.Only after　　　 set free　　　　 able to go on with his research work．

A．he was；was he　 B．was he；was he　 C．was he；he was　　 D．he was；he was

30.　　　 , so she had to be sent to the hospital.

　 A. Being ill　　　　　　　　　　　 B. Her mother was ill

C. Her mother being ill　 　　　　　D. Having been ill

1-5ACDAA　　 6-10ACDDC　　　 11-15CDCBA　

16-20BACAB　 21-25ADABA　　 26-30BBDDB

29.The proposal had been put forward, and then arose the question 　　　　we were to get the proofs 　　　　.

　 A. what; needed　　 B. where; to need　 C. what; to need　 D. where; needed

28. I , _____a teacher, should set a good example to students . A. as I being　　 　B. having been 　　C. to be 　　　D. being

27.________, tears ran down her pale face. A. Say no word 　B.　No word said　 C. Not saying a word 　D. Without saying a word　

26.－ I’ll thank you _____ my affairs alone.

　－I will. It’s none of my business.

　A. leaving　　　 B. to leave　　　 C. for leaving　　　 D. not to leave

25. If the building project ________ by the end of this month is delayed, the construction company will be fined.

A. to be completed　 B. is completed　 C. being completed　 D. completed

24. The police had a hard time _______the thieves, but they didn’t take great trouble_______ their head.

A.　　 to catch; catching　　　　　　　 B. catching; to catch　

C.　 in catching; in catching　　　　　 D. to catch; in catching

23.With a lot of problems considered ______, the principal decided to hold a meeting to have a thorough discussion about them.

A. to solve　　 B. being solved　 C. solving　 D. solved

22.The actor threw himself from the horse, as if_______.

　 A. to be shot　　 B. being shot　　 C. shooting　 D. shot