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.