单选题
In fact he had done ______ he could to help the poor.
A、
what
B、
which
C、
as
D、
all which
【正确答案】
A
【答案解析】
[解析] 本题测试宾语从句的用法。what引导宾语从句, what在从句中做宾语。本句的意思是;“事实上,他在尽一切所能帮助穷人。”
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