题目

Are you paying now, or shall I ＿＿＿＿＿＿ to you? A. book it down     B. book it in  C. book it up     D. book it out 答案：A 解析: book down ＝ put down in a book，意为“记账”；book in的意思为“签到，登记”；book up意为“预定座位或车、船票”等。

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