I’m sorry that I can’t help trees because I am busy with the homework.
A. to plant
B. planting
C. planted
D. plants
网友回答
(答案→)A. to plant
B. planting
C. planted
D. plants
解析:词组辨析题。can’t help to do sth 不能帮助做某事; can’t help doing 情不自禁做某事。句意:很抱歉我不能帮你种树因为我忙着写作业。 选A