单选题
From time to time we must look up words ______.
A、
the meanings of those we do not know
B、
whose meanings we are not familiar
C、
that we do not know their meanings
D、
whose meanings we do not know
【正确答案】
D
【答案解析】
D选项是由whose引导的定语从句，修饰words。whose为引导词，在定语从句中做定语，修饰meanings。该题考点为定语从句中引导词的选择。
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