if he had help you ,he would have risked( ) his job

问题描述:

if he had help you ,he would have risked( ) his job
a,to lose
b,losing
c,to be lost
d,being lost

B
首先冒着失去工作的危险,这是主动的动作,排除CD
而risk doing sth是固定句型,所以选B