Question

【题目】Students are busy ________ for the coming test these days.

A.prepareB.preparedC.to prepareD.preparing

Answer 1

【答案】D

【解析】

句意：这些天学生们正忙着准备即将到来的考试。

考查形容词短语和现在分词做伴随状语。短语be busy doing sth.：忙于做某事；故选D。