19. You will succeed in the end _____ you give up half-way.

　　 A. even if　　 B. as though　　 C. as long as　　 D. unless　　　

18. --- Is your brother going camping?

　 --- He’s signed up but he’s considering ______.

　　 A. not to go　　 B. not going　　 C. won’t go　　 D. not go　　　

17. I thought her nice and honest ______ I met her.

　　 A. first time　　　 B. for the first time　　 C. the first time　　 D. by the first time　　

16. ______ population up by 60%, the country has had another excellent year.

　　 A. As　　　 B. For　　　　　 C. With　　　　　 D. Through　　　

15. --- I’ll tell Mary about her new job tomorrow. --- you _______ her last week.

　　 A. ought to tell　　 B. would have told　　 C. must tell　　　 D. should have told　　

14. Why! I have nothing to confess, _______ you want me to say!

　　 A. what is it that　　　　 B. what it is that　　 C. How is it that　　 D. How it is that　　

13. We are swimming in the lake _______ suddenly the storm started.

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

12. ---You forgot your purse when you went out.　 ---- Good heavens, _______.

　 A. so did I　　　 B. so I did　　 C. I did so　　　　 D. I so did　　　

11. A great deal of science and technique has been ______ since China carried ______ reform and open.　 A. brought down, on　 B. brought in, out　 C. brought out, out　 D. brought up, on　 B

10. Please tell me how the accident ______. I am still in the dark.

　 A. came by　　　　 B. came upon　 　　　C. came to　　　 D. came about