24. The first textbooks ___ for teaching English as a foreign language came out in the 16th century.

　 A. having written　 　B. to be written　　 C. being written　 　D. written

23. There was a terrible noise ____ the sudden burst of light.

　 A. followed　　　　 B. following 　　C. to be followed　　 D. being followed

22. She will tell us why she feels so strongly that each of us has role ___ making the earth a better place to live.

　 A. to have played　 　B. to play　　 C. to be played　 　　D. to be playing

21. ---- How do you deal with the disagreement between the company and the customers?

　 ---- The key ___ the problem is to met the demand ____ by the customers.

　 A. to solving; making B. to solving; made C. to solve; making　 D. to solve; made

20. The teacher asked us ___ so much noise.

　 A. don’t make　　　　 B. not make 　　C. not making　　　　 D. not to make

19. European football is played in 80 countries, _____ it the most popular sport in the world.

　 A. making　　 B. makes　　 C. made　　 D. to make

18. It is no longer a question now ____ man can land on the moon.

　 A. that　 B. which　 C. whether　 D. what

17. He let me repeat his instruction ____ sure that I understand what was ___ after he went away.

　 A. to make; to be done 　B. making; doing 　C. to make; to do 　D. making; to do

16. It is in Shenzhen ____ you’re going to pay a visit to ____ this kind of machine is produced.

　 A. that ; which　　 B. where ; which　 C. / ; where　　 D. / ; that　　

15. In order to gain a bigger share in the international market, many state-run companies are striving ____ their products more competitive.

　 A. to make　　 B. making　 C. to have made　 D. having made