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单选题
It was the color of the material _____ he was surprised at.
A
who
B
whom
C
which
D
what
参考答案
参考解析
解析：
根据空格后的内容可知，强调部分为句子的宾语（介词宾语），从空格前的内容可知，此宾语指物，因此，可以将A、B排除。强调结构中一般不用what指物，因此D亦可排除。正确选择为C。
根据空格后的内容可知，强调部分为句子的宾语（介词宾语），从空格前的内容可知，此宾语指物，因此，可以将A、B排除。强调结构中一般不用what指物，因此D亦可排除。正确选择为C。
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