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I haven't seen you for a couple of days. What have you been up ?A.inB.toC.withD.for

编辑:chaxungu时间:2026-04-27 02:46:36分类:高中英语题库

【题目】I haven't seen you for a couple of days. What have you been up________?

A.in

B.to

C.with

D.for

在线课程

【答案】B

【解析】be up to sth.“在做某事”。后一句句意:你一直在忙什么事情?