【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?
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?