问题 单项选择题

The residents,()had been damaged by the flood, were given help by the Red Cross.

A. all their homes

B. all whose homes

C. all of whose homes

D. all of their homes

答案

参考答案:C

解析:

两个逗号之间的部分为插在主句当中的定语从句。

单项选择题
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