20.Before you resign you should consider the effect _____ will have on your family.

A. it　 B. the one　 C. as　 D. what

19.After losing $20,000 on my last business venture, I _____ any chances this time.

A. haven't taken　　 B. don't　 take　

C. wouldn't take　　 D. am not taking　　

18._____ the fact that Hobson was not a trained economist his achievements were remarkable.

A. In consequence of　 B. In view of　

C. In case of　　　　 D. In sight of　

17.______ is none of your business.

A.I shall take which course　　　

B. Which course shall I take

C. It is which course I shall take　

D. Which course I shall take　

16.Your teacher telephoned to inform me of your test results, or I ______ you failed again.

A. wouldn't know　 B. wouldn't have know　

C. didn 't know　　 D. hadn't known　

15.The workers who attended the strike demanded that their wages ______ by 10 percent.

A. would be raised　 B. were raised

C. be raised　　　　 D. had been raised　　

14.She _____ the book sometime in the past　　　 as there is no way she could have answered　　 the questions so accurately.

A. ought to read　　　 B. must have read　

C. must read　　　 D. should have read　

13.The streets were full of crowds, all _____ the Italian victory.

A. celebrated　 B. having congratulated　

C. celebrating　　 D. congratulating　　

12. The ____ couples present today all _____　　　 for over 50 years.

A. marrying, have married　　

B. married, have been married

C. marrying, married　　 　　

D. married , have married　

11.All the plants now being grown on farms have developed from plants _____ in the wild.

A. once they grew　　　 B. they grew once　

C. that once grew　　　 D. grew once