worked的ed是什么时态

　　We worked like crazy to get it done on time.

　　我们拼命地干，好按时完成这项工作。

　　They worked hard to give their children a good start in life.

　　他们力争为孩子们奠定一个良好的`基础。

　　She worked hard so that everything would be ready in time.

　　她卖力地干着，为的是一切能够及时就序。

　　It's never worked from day one.

　　这从一开始就行不通。

　　He worked in a hospital for ten years nursing cancer patients.

　　他在一所医院里工作了十年，护理癌症病人。