题目内容
There are three girls in the room, ________ is Tom's sister.
A. the tallest of which B. the tallest of whom
C. tallest of that D. tallest of which
B

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题目内容
There are three girls in the room, ________ is Tom's sister.
A. the tallest of which B. the tallest of whom
C. tallest of that D. tallest of which
B