题目内容
I haven't seen you for a couple of days. What have you been up ________?
[ ]
A.with
B.to
C.for
D.about
答案:B
解析:
解析:
|
导解:be up to sth.表示“在做某事”. |
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题目内容
I haven't seen you for a couple of days. What have you been up ________?
[ ]
|
导解:be up to sth.表示“在做某事”. |