考博考试

试题来源：考博英语-214
【单选题】 The old couple were not rich themselves, but they hated to turn away anyone who were ______ food and shelter.
A．at the mercy of
B．on the point of
C．with the exception of
D．in need of

参考答案：D
网考网解析：
[解析] at the mercy of在……支配中；on the point of正要……时；with the ex... 查看试题解析出处>>