10.　 Its 　　　　(速度)is 70 kilometres an hour.

9． We must 　　　　　(遵守) the traffic rules.

8.　 The man had an 　　　　　(不同寻常的)experience.

7.　 Turning lights off before we go out ,so we don’t 　　　　(浪费) electricity.

6．We shouldn’t 　　　　(扔) things away.

4.　 –-- Can I 　　　　　(借)　 your dictionary?

--- Sorry , I have 　　　　　　(借) it to others.

2.　 We must make the clothes 　　　　　(变干).

3　 Can I ask a 　　　　　(帮助)?

1．This tool was 　　　　　(创造)hundreds of years ago.

A: 　　1　　

B: Yes, please. I’d like to have a look at the shirt.

A: 　　2　　

B: The green one . What is it made of ?

A: It’s made of silk .It feels soft .

B: 　　3　　

A: That one is not made of silk. It is made of cotton.

B: 　　4　　

A: Of course the one made of silk.

B: 　　5　　

A.　　 I’d like an expensive cotton shirt.

B.　　　 Which one ?

C.　　　 OK, I’ll take the green one

D.　　 May I help you ?

E.　　　 Which one is more expensive ?

F.　　　 What about that yellow one ?

G.　　 What is your favourite colour?