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
【正确答案】
D
【答案解析】
[解析] at the mercy of在……支配中；on the point of正要……时；with the exception of除……之外；in need of需要。根据句意，D最适合。
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