11. be able to do sth 能够做……
12. be afraid of (to do sth) 害怕做某事
13. be angry with sb 生(某人)的气
14. be pleased (with) 对……感到高兴(满意)
15. be famous for 以……而著名
16. be strict in (with) 严格要求
17. be from 来自……
18. be hungry / thirsty / tired 饿了;口渴;疲惫
19. be worried 担忧
20. be (well) worth doing (非常)值得做…