Thank you for______me with my English.A helpB helpsC to helpD helping麻烦说说为什么?
问题描述：
Thank you for______me with my English.
A help
B helps
C to help
D helping
麻烦说说为什么?
答
D
Thank you for doing sth.
即helping
答
选：D helping
for 后面必须加动名词,即 动词＋ ing