问题补充:
She can’t help the house because she’s busy making a cake.
A. to clean
B. cleaning
C. cleaned
D. being cleaned
答案:
(答案→)A. to clean
B. cleaning
C. cleaned
D. being cleaned
解析:句意:她不能帮助清扫房子,因为她在忙着做蛋糕。can’t help to do 不能帮助做某事,can’t help doing 情不自禁做某事。根据题意应选A。