Thank you so much for me find my book.A. helpingB. helpsC. helpD. to help

问题补充：

Thank you so much for me find my book.

A. helping

B. helps

C. help

D. to help

答案：

(答案→)A. helping

B. helps

C. help

D. to help

解析：在英文中介词for后跟动名词doing作宾语，故本题选A。