Question

He worked hard and achieved what he set out to do, but ________ what he had owned, including his health and his marriage.

A. at the mercy of　　　　　　　　　　　 B. at the risk of

C. at the cost of　　　　　　　　　　 D. at the service of

 

Answer 1

C

 

考查介词短语的含义。句意：他努力工作并且实现了他开始设定的目标，可以他所拥有的为代价，包括健康和婚姻。此处at the cost of以……为代价。