father is busy___the meal while i am busy with the homework.A.cooking B.cook C.to cook D.with
问题描述：
father is busy___the meal while i am busy with the homework.A.cooking B.cook C.to cook D.with
答
A
be busy doing sth 固定用法：忙于做某事
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答
A.cooking
be busy doing sth
基本翻译
忙着做某事
网络释义
be busy doing sth:忙于做某事 | 忙于 | 忙于做