2. 外语
  3. Those were the graduate assistants ______ to do the research work in the lab.

Those were the graduate assistants ______ to do the research work in the lab.

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问题 Those were the graduate assistants ______ to do the research work in the lab.
选项 A、to whom it was their responsibility
B、whose responsibility there was
C、whose responsibility was
D、of whom with the responsibility
答案C
解析 语法结构题。此题考查属格关系代词引导的定语从句，A 、D 项应先排除；B 项从句的谓语为there be结构，讲不通；因此只有C 项为正确答案。
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