题目内容
—What are you busy ________?
—I am busy ________ the plan for the sports meeting.
A.in; to make B.with; to make
C.in; making D.with; making
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题目内容
—What are you busy ________?
—I am busy ________ the plan for the sports meeting.
A.in; to make B.with; to make
C.in; making D.with; making