hit的过去式和过去分词及用法是什么

例句：

1、My parents never used to hit me.

我的父母以前从来不打我。

2、She hit upon the perfect title for her new novel.

她灵机一动为自己的新小说找到了一个理想的书名。

3、Everything was going well but then we hit trouble.

原本一切都进行得很顺利，但后来我们遇到了麻烦。

4、Every one of their CDs has been a hit.

他们的.每一张激光唱片都曾经非常流行。

5、The duo were a real hit in last year's show.

这一对搭档在去年的演出中大受欢迎。