请根据提示,写出以下规则变化动词的过去式或过去分词,并总结变形规律。
例:walk walked walked live lived lived
carry carried carried drop dropped dropped

1. looked 2. cleaned 3. played
4. liked 5. hoped 6. moved
7. cried 8. studied 9. worried
10. planned 11. stopped 12. shopped

变形规律总结
一般情况：；以e结尾：；以辅音+y结尾：；重读闭音节：。
同学们，我们刚才总结了规则动词的变化规律，但英语中还有一部分动词不遵循这些规则，它们的过去式和过去分词需要我们特别记忆。

一般情况:在词尾加-ed;以e结尾:在词尾加-d;以辅音+y结尾:把y变i再加-ed;重读闭音节:双写末尾辅音字母再加-ed。

学以致用二
请尝试将以下含被动语态的句子补充完整，并总结被动语态在不同时态中的用法。
1. English is spoken people all over the world.
2. Rules (make) to keep us safe.
3. A sports meeting will be held the Students' Union next week.
4. The work (finish) in two hours.
5. The book was written Mo Yan in 1986.
6. The books (return) to the library just now.

1. by 2. are made 3. by
4. will be finished 5. by
6. were returned