There were two boys in the lab, did the experiment successfully.A. the clever of whomB. t

There were two boys in the lab, did the experiment successfully.
A. the clever of whom
B. the cleverer of whom
C. the cleverer of them
D. the more clever of them

A. the clever of whom(答案→)B. the cleverer of whomC. the cleverer of themD. the more clever of them解析：考查比较级和定语从句。本题定语从句的先行词是two boys,故后面使用比较级，表示两者中更聪明的那个。Whom指代先行词在句中做of的宾语。句意：在实验室里有两个男孩，其中更聪明的那个成功地做了那个实验。故B正确。

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