41. You must keep your eyes ________.
A. closed B. close C. be closed D. to closed
答案： A. closed为形容词，“闭着，合着”。Keep doing, 持续做……。Keep + 形容词，“保持……状态”。
42. A farmer arrived _______ a women's house.
A. in B. at C. to D. for
答案： B. arrive at，“到达(较小的地方)”；arrive in，“到达(较大的地方)”。此外，还可用get to, reach表示“到达”。
43. Kate says that she _______ a message on the desk.
A. will leave B. leave C. will give D . give
答案： A. give a message to sb，“给某人捎信”；leave a message for sb，“给某人留下口信”。
44. He has two kites, one is big, ______ is small.
A. the other B. another C. other D. others
答案： A. 两各种的另一个或两部分中的另一部分，用the other表示，如：On the other side of the road, there are many trees. Other后如有复数名词，可简写为others.
45. Computers are the second most useful ____ of the world.
A. inventions B. inventors C. invention D. inventor
答案： C. invention，“发明”；inventor，“发明者”。
46. On my way home I saw a dog _______ on the ground.
A. lying B. lies C. lied D. to lie
答案： A.
47. There is little water in the glass, _______ ?
A. isn't there B. is it C. is there D. wasn't there.
答案： C. little表否定含义。
48. Two months _____ quite long for me . I can't wait.
A. is B. are C. were D. is going to be
答案： A. 时间段和距离做主语，做单数对待。如：Five miles is a long distance for the old man.
49. I don't know ______ .
A. where does Jim live B. where did Jim live
C. where Jim lives D. where is Jim live
答案： C. 宾语从句应注意的三个问题：1)从句的时态与主句的时态之间不能有逻辑上的矛盾。2)从句用陈述句语序。3)注意使用正确的引导词。
50. The boy was very interested _______ English.
A. at B. in C. to D. on
答案： B