[参考答案]
第一部分：
1-20: BCAAC CAACA BBABB CABBC
第二部分：
21-35: DBBCC BBDDA DCAAC
36-55: BADCB ABDAC CBADA CBCDA
第三部分：
56-75: AACAA CCBBA DDCDB BDCBD
第四部分：
第一节：
76. time 77. Really 78. knocked 79. left 80. gone
81. nearly / near 82. sure 83. right 84. believe 85. joking
第二节：
It is reported that about 100,000 people will be chosen as volunteers for the 2008 Olympic Games in Beijing. What should the volunteers do and what should they not do?
Firstly, they should be polite and friendly to the athletes and visitors from all over the world, and avoid improper behaviour. Secondly, they should stick to their posts, offering good services, satisfying any reasonable needs and being ready to help those in difficulty, and never fail to do theirduty. Thirdly, they should introduce the Chinese culture and history to foreigners so that they may know China better and never say or do anything that harms the image of our motherland.
If I have the honour to be chosen as a volunteer, besides the above, I will work hard and creatively, but never be lazy. I will follow the law and disciplining, but never break them. I will take the opportunity to make friends with the athletes and visitors, and help make the 2008 Olympic Games a great success.

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