They are thinking about _______ the poor children. A. help B. to help C. helping D. helps
问题描述:
They are thinking about _______ the poor children. A. help B. to help C. helping D. helps
答
C about 为介词,后接动词应为ing形式。
答
C,about是介词,介词后面接动词ing形式
答
C
about是介词