---What are you busy doing these days?
--- the college entrance examination.
A. Preparing for
B. To prepare for
C. To be preparing for
D. Prepared for
网友回答
(答案→)A. Preparing for
B. To prepare for
C. To be preparing for
D. Prepared for
解析:句意:--这些天你在忙什么?—准备大学入学考试。be busy doing忙于做某事;这里答语是省略句,完整的是I am busy preparing forthe college entrance examination.故选A。