grocery的复数形式

例句：

1、 Her mother began operation of a small grocery.

她母亲开始经营一家小杂货店。

2、 Guess who I met at the grocery store.

你猜我在杂货店遇到了谁？

3、 Grocery stores sell many foods that have been processed.

杂货店出售许多加工好了的食物。