among and in and between
______ all the girls in my class，Mary is the most beautiful and popular.
- DaSaGwaLv 78 年前最佳解答
The key point to choose the right answer is, "... the most beautiful ..." It is in its superlative form (形容詞的最高級). When you use superlative, you make comparison for at least 3 or more. Among the choices, only "among" is for 3 or more. That is why the answer is (D).
"between" is only for 2
"in" and with" don't fit the context of the sentence, because the context is for comparison.