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

　　書面表達:：

　　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