apples up is picking it和under tree y are sisters playing chess the 连词成句
问题描述：
apples up is picking it和under tree y are sisters playing chess the 连词成句
答
Sisters are playing chess under the tree.
答
y是啥
答
Is it picking up apples?它在摘苹果吗?
Your sisters are playing chess under the tree.你姐妹们正在树底下下棋.