17. It was midnight ______ I finished ______ the book.

A. when , to read　　 B. that , reading　 C. at which , reading　 D. when , reading

16. The kidnapper threatened _______ his only son if Tom didn’t manage to send him one million dollars in a week.

A. to kill　　 B. killing　　 C. and killed　　 D. to have killed

15. Jane had a high fever. Tom felt _____ his duty to look after her.

A. that　　　　 B. it　　　　　 C. this　　　　 D. /

14. You can’t imagine that rats eat 40 to 50 times ________.　

　 A. in weight　　 B. by weight　 　C. of weight　 D. their weight

13._____ either of your parents come to see you in the last two weeks?

A. Has　　　 B. Have　　　 C. Had　　　　　 D. Will

12. I hate _____ when someone calls me up in the middle of the night.

　 A. one　　　 B. that　　　　 C. it　　　　　　 D. which

11. He is such a great scientist ________ all the people in the world show respect for.

　 A. that　　　　 B. as　　　　 　C. so　　　　　　 D. who

10. He made a mistake, but then he corrected the situation _____ it got worse.

A. until　　 　　 B. when　　　 C. before　　 　　　 D. as　

9. His father ______ a soldier in World War II, didn't he?

　 A. was　　　 　B. would be　 　C. must be　　　 D. used to be

8.--Would you care for tea or coffee?　 --Neither, ______. I've just had some tea.

　 A. thank you　 　B. of course, please　 　　C. yes　 D. no, please