4.　　 You 　　　　(最好) put your coat. It’s a bit cold outside.

3.　　 Please 　　　　(取出) one pencil from your pencil case.

2.　　 Have you ever 　　　　(出国)？

1.　　 Who are you 　　　　(等待)？

20. You’d better not 　　　(do) that.

19. He asked me 　　　(hold) on while he left the telephone to get a pen.

18. They built 　　　(factory) in Germany and France in the 1890s to make cars.

17. He is very 　　　(humor).

16. The two villages 　　　(connect) by a new road are not far from my hometown.

15. The Great 　　　(lake) are the largest bodies of fresh water in the world.