23 They don't want to risk ____ it on fire.a.set b.setting 需要详细分析

问题描述:

23 They don't want to risk ____ it on fire.
a.set b.setting 需要详细分析

b, 动名词结构

risk doing 结构

B.risk doing something
冒险做某事

B rist doing

risk doing something
冒险做某事