摘要:第一节 语法和词汇知识(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. A. contrast B. contact C. contract D. content23. ---Catherine, I’ve cleaned the room for you. ---Thank you. You it. I could manage it myself. A. needn’t do B. needn’t have done C. mustn’t do D. shouldn’t have done easily, which does great harm to our environment. A. break off B. break in C. break down D. break out

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