题目

Millionaires are often very generous and __a lot of their money to charities to help the poor. A. give in      B. give up      C. give away     D. give off 答案：C 解析: 略Unable to work at a steady job _______ a terminal illness, he decided to volunteer at the local children center. A. at the cost of B. as a result of C. in case of D. at the risk of