26.　 lie-lied-lied(说谎)

lie-lay-lain(躺下)

lay-lain-lain(下蛋)

25.　 library (n.) 图书馆→librarian (n.) 图书管理员

24.　 forgot one’s key=left one’s key behind(或left one’s key+sp.)

23.　 burst into laughter(+burst out laughing)大笑起来

burst into tears(=burst out crying)大哭起来

22.　 be late for 迟于…　　　 be late with 耽误…

be famous for 著名于…　 be famous with 在…著名

21.　 knowledge (n.) 知识→have a knowledge of 有…的知识

20.　 kill the time 打发时间

19.　 kick sb. on the leg

18.　 sb. be kept doing sth.=keep sb. busy doing sth.

17.　 be keen on=be fond of热爱

一些常见的介词结构：be different from, keep the secret between you and me