20. --- Excuse me, mum, but I want to join my friends for an outing.

　 --- OK. ________ !

A. Congratulations　 B. Good luck　　 C. With pleasure　　 D. Have fun

19. We must put _____ into practice.

A. what we have learned　　　　　　　　　　 B. that we have learned

C. that have we learned　　　　　　　　 D. what have we learned

18. ____ work has been done to improve the people’s living standard.

　　　 A. Many　　　　 B. A great many　 C. A great deal of　　　　　 D. A number of

17. - I don’t think we have met before.

-　　 Yes, once at a party, but we _______.

A.　　 weren’t introduced

B.　　　 didn’t introduce

C.　　　 haven’t introduced

D.　　 weren’t introducing

16. Maggie has a head of yellow hair. She takes ___ in it.

　　 A. pride　　　 B. proud　　 C. power　　 D. pleasant

15. After sitting on a bench, ____.

A. and I found the wet paint all over my trousers

B. my trousers were found with the wet paint all over

C. the wet paint was found all over my trousers

D. I found the wet paint all over my trousers

14. It’s too late to go shopping at this hour; _____, it’s beginning to rain.

A. except　　　 B. and　　　　　 C. besides　　　 D. but

13. We have to produce more food to ____ the demand of the ever-growing population.

　 A. meet　　　　 B. match　　　　 C. fit　　　　　 D. fix

12.　　 - Tom is never late for work. Why is he absent today?

-Something _____ to him.

A. must happen　　　　　　 B. should have happened　　

C. could have happened　　　 D. must have happened