问题
选择题
The road conditions there turned out to be very good，________ was more than we could expect.
A．it
B．what
C．which
D．that
答案
答案：C
解析 空格前为逗号，故需用关系代词作动词was的主语。what不引导定语从句；that不引导非限制性定语从句；it不是连词；故只有C项正确。
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