问题
选择题
I’m busy ________ my homework, and my mother is busy _______ dinner.
A．in; cook
B．in; cooking
C．with; cook
D．with; cooking
答案
答案：D
本题考查busy的相关用法：be busy with sth 和be busy doing sth ，表示“忙于什么”或者“忙于做什么”。所以此题答案为D。