I am busy preparing for the mid-term examination, so I can’t help housework.
A. doing
B. to do
C. being done
D. with doing
网友回答
A. doing
(答案→)B. to do
C. being done
D. with doing
解析：考查短语辨析。can’t help doing 情不自禁做某事，can’t help to do 不能帮助做某事，句意：我在忙着为期中考试准备，因此群殴不能帮助做家务。所以选B。