He worked hard and achieved what he set out to do, but what he had owned, including his h

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

A. at the mercy ofB. at the risk of(答案→)C. at the cost ofD. at the service of解析：可联系答.案.网客服索取。

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