摘要:第一节语法和词汇(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. In recent years global warming is becoming concern for people all over the world. A. the; the B.不填;不填 C. 不填;a D. the ;不填

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