Among the competitors there are three little girls is Mary.A. the smallest of whomB. th

问题补充：

Among the competitors, there are three little girls , is Mary.

A. the smallest of whom

B. the smaller of whom

C. the smallest of them

D. the smallest one

答案：

(答案→)A. the smallest of whom

B. the smaller of whom

C. the smallest of them

D. the smallest one

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