摘要:第一节 单项填空 (共15小题,每小题1分.满分15分) 从A.B.C.D四个选项中.选出可以填入空白处的最佳选项.并在答题卡上将该项 涂黑.21. Shelly had prepared carefully for her biology examination so that he could by sure of passing it at her first . A. intention B. effort C. attempt D. appetite

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