2. used to, be used to

　　 When I was a child, I used to climb that hill.

　　 We are used to the weather here.

　　 我们已经适应了这的天气。

1. pay, cost, spend, take

　　 A. pay v. 给…报酬，pay for 为…付款

　　 pay money for 花钱买…

　　 B. cost某物花(某人)多少钱

　　 The new radio cost her twenty yuan.

　　 C. spend 指花时间和金钱

　　 I usually spend 300 yuan on newspapers every year.

　　 Tom spent one hour playing football yesterday.

　　 D. take做某事花费(某人)多少时间

　　 It takes us twenty minutes to write down the new words.

15. That’s a deal.

14. It takes about twelve hours if you take k37 train.

13. In the south of the island, there is scuba diving, fishing and boating.

12. I’m free except today.

11. I hope to see you as soon as possible.

10. Make sure that all of the rubbish goes into the dustbin.

9. The more trees, the better.

8. It’s our duty to keep our environment clean and tidy.