问题描述：
___are in the same grade.选择
A.You,I and she
B.I,you and she
C.You,she and I
D.She,you and I
顺便告诉我为什么
A.You,I and she
B.I,you and she
C.You,she and I
D.She,you and I
顺便告诉我为什么
问题解答：
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