31. ______ the books in our library ______ about 80,000.

　 　A. The number of; are　　　　　　　　　　 B. A number of; are　

　 C. The number of; is　　　　　　　　　　 D. A number of; is

30. The Greens ______ to New Jersey. They ______ the city for a month.

　 A. have gone to;　 have been to　　　　 B. have gone to;　 have been in

　 C. have been to; have been in　　　　　 D. have been; have been to

29. The car is too expensive. It ______ 2,000,000 dollars.

　 A. spend　　　　 B. costs　　　 C. pay　　　　 D. cost

28. When will they leave for Beijing ?　　 - ______ next week.　　

　 A. Some time　 　　B. Sometime　　　 C. Some times　　　 D. Sometimes

27. Look, there are a lot of surfers ______ in the sea.

　 A. surf　　　　 　　B. surfed　　 　　　C. surfing　 　　　　D. are surfing

26. There is a ______ river in front of their school.

　 A. two-metres-deep　 B. two-metre-deep 　C. two-metres-high　 　D. two-metre-long

25. Have you found your English book______?　

　 A. yet　　　　　　　 B. already　　　　　　　 A. still　　　　　　　 D. ago

24. Not only you but also he ______ the library books.

　 A. has returned　　　　 B. have returned　　　　 C. return　　　　 　D. to return　　　　　　　　　　　　

23. ______ of the two girls likes playing football.

　 A. None　　　　　　　 B. Neither　　　　　　　 C. All　　　　　　　 D. Both　　　　　　　　　　　　　　　

22. They used to ______ in the countryside.　 A. lived　　 B. lives　 C. live　 D. living