hit的過去式和過去分詞及用法是什麼

例句:

1、My parents never used to hit me.

我的父母以前從來不打我。

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

她靈機一動爲自己的新小說找到了一個理想的書名。

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

原本一切都進行得很順利,但後來我們遇到了麻煩。

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

他們的.每一張激光唱片都曾經非常流行。

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

這一對搭檔在去年的演出中大受歡迎。