21. Jack is a good friend _____, he often comes to our home for a visit.

　　A. of my father B. of my father's C. for my father D. with my father

　　22. What way are you thinking of _____ rid of the flies?

　　A. to get B. getting C. being got D. to be getting

　　23. We must do something to _____ factories _____waste water into the river before it is cleaned.

　　A. stop; pouring . B. prevent; to pour C. keep; pouring D. stop; to pour

　　24. "_____ of them are not here." means "_____ of them are not here."

　　A. All; Some B. Both; Every C. Both; Neither D. All; Both

　　25. --How did you do in the test?

　　--Not so well. I _____ much better but I misread the directions for Part D.

　　A. could do B. could have done C. must have done D. should do

　　26. Mary cares about clothes too much, and she _____ too much money _____ clothes.

　　A. spend; in B.cost; at C. pays; to D. spends; on

　　27. Our kind teacher wanted to teach us _____ he knew athis lesson.

　　A. that B. all what C. that all D. everything which

　　28. They started early that morning in order that they_____ there before noon.

　　A. would get B. got C. must get D. might get

　　29. Is this research center _____ the foreign guests visited last week?

　　A. that B. which C. where D. the one

　　30.--What is the model plane look like? --Well, the wings of the plane are _____ of its body.

　　A. more than the length twice B. twice more than the length

　　C. more than twice the length D. more twice than the length

　　31. The enemy troop suddenly took the small village by surprise _____ a rainy morning.

　　A. on B. at C. in D. during

　　32. This is the school _____ they visited last year and is the one _____ my father once worked.

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

　　33. The college entrance examination is coming, the students are _____ it.

　　A. preparing B. prepared for C. prepared D. preparing for

　　34. The task was very hard, so _____ were needed.

　　A. ten more men B. ten men more C. more ten men D. men more ten

　　35. He wanted to read more, so he asked his friend if there was _____ to read.

　　A. something easy enough B. something enough easy

　　C. enough easy something D. easy enough something

　　36. The room is very large and only little room _____ by the new piano.

　　A. are taken up B. takes up C. is taken up D. is taking up

　　37. What _____ time it is to listen to a speech having nothing to do with you!

　　A. waste B. wastes C. a waste of D. a waste for

　　38. _____ your help, we have _____.

　　A. Thanks to, finished B. Thanks to, ended C. Thanks for, finished D. Thanks for, completed

　　39. When and where to build the new factory _____ yet.

　　A. is not decided B. are not decided C. has not decided D. have not decided

　　40. It is necessary ___ me ___my studies before a new term.

　　A. for, to make a plan for B. of, making a plan for

　　C. for, to make a plan of D. of, making a plan of