题干

I am too busy _______ my homework _______ my mother wash dishes.

A:to do, helping

B:to do, to help

C:doing, helping

D:doing, to help

上一题 下一题 0.0难度 选择题 更新时间:2019-12-25 10:47:07

答案(点此获取答案解析)

D