Keys：
1—10 CBCDA CDDDB
11—20 ACCDA CABBD
21—30 CBCCD DDBDA
31—40 BCBDA DCBCB
41—50 CDCDD CCACB
51—55 ACBBA

56. in → on 　57. √ 　58. greatly → great　
59. hanged → hung
60. or → and 　61. lonely → alone 62. the → a　
63. breath → breathe 64. which → what　65. that → so

书面表达:：
No.27 Middle School
Zhongzhou, Sichuan Province
January 14, 2000

Dear Editor

    In the countryside a lot of children are leaving school at an early age for various reasons. Some have to leave school because their families are too poor to pay for their education. Some find difficulties in study. Some have to help their parents to earn money. And some simply do not like studying. In my opinion the main reason that the children can not finish school is the poor living conditions of their families.

    I think every child has the chance to receive education. As a student I can't do much about it. but I would try my best and now, I would like to give them all my pocket money and hope it will help some children.

    Your truly

    Li Hua