19. Studies show that the things that contribute most to a sense of happiness cannot be bought, ______ a good family life, friendship and work satisfaction.

　 A. as for　　 　　B. in view of　　　 C. in case of　　　 D. such as

18. ------ ______ he managed to get the information?

　 ------ Oh, a friend of his helped him.

　 A. Where was it that　 　　　　　　B. What was it that　

C. How was it that　 　　　　　　　D. Why was it that

17. I told him it was a bad idea, but Dave’s so ______ that he just never listens.

　 A. ambitious　　 B. strict　　　 C. stubborn　　　 D. straightforward

16. ------- Did you take enough money with you?

　 ------- Yes, I need _______ I thought I would.

　 A. not so many as　 　　　　　　B. as many as　

C. much more than　 　　　　　D. much less than

15. Bad habits, ______ formed, are difficult, and sometimes impossible to shake off.

　 A. before　　　　 B. once　　　 　C. until　　　　 D. unless

14. Not until he called the secretary three times ______ that the manager went to an important meeting.

　 A. did he tell　 B. he told　 C. was he told　 D. he was told

13.----- Tom is wise enough to achieve his success.

　 ------ But in my opinion, he is ______ than wise.

　 A. luckier　　　 B. more lucky　　　 C. much luckier　　　 D. rather lucky