When children start smoking, they don’t realize that they are risking their health.
A. to damage
B. damaging
C. to be damage
D. being damaged
网友回答
A. to damage
(答案→)B. damaging
C. to be damage
D. being damaged
解析：risk用作动词, 后接动名词作宾语, 而不接不定式, 意思为 “冒着……的风险”。故答案为B。