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定语从句9

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(10)Those were the assistants to do the research work in the lab. A.to whom it was their responsibility B.whose responsibility there was C.whose responsibility it was D.of whom responsibility was
解题思路: 如下
解题过程:
选C。此句是一个定语从句,先行词assistants与responsibility之间是所属关系,故用关系代词whose,从句中含有It is one’s responsibility to do sth. 句式。
句意是:就是那些本科生,他们的责任是在实验室里做研究。

最终答案:略