摘要：VI. 单项选择(共20小题,每小题1分.满分20分) 从每小题所给的A.B.C.D四个选项中选出可以填入空白处的最佳选项.31. -- I need something for cutting the paper. -- Oh, you want a knife? OK, I'll get for you. A. it B. that C. this D. one

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