kid的过去式和过去分词

　　You people without kids don't know you're born.

　　你们没孩子，真是身在福中不知福啊。

　　Go and see what the kids are doing, will you?

　　你去看看孩子们在干什么好不好？

　　The kids go back to school next week.

　　孩子们下周开学。