21. Our country has done something to stop population i                .

22. Let me tell you a saying: K                 is power(力量).

23. The students r                 the story many times until they can tell the story naturally.

24. Did you know who f                (发现) America?

25. If you want to learn English well, please read a                 every morning. It really helps a lot.

26. Our English teacher's p                 is good, so we can understand her well.

27. The e                 on her face shows she is happy.

28. Every host country c                 its own slogan.

29. He often takes an a                 part in the sports meeting and he can get very good results each time.

30. The car runs at a s                 of 110 kilometres an hour.

31. The population continues to                 (增加；增长).

32. I think                 (知识) is more important than money.

33. My parrot is clever enough to learn to                 (重复) the words I say.

34. Chinese people were the first to                 (发现) the South China Sea.

35. Goodness me! Your                 (发音) is very good.

36.                 (物理) is my favourite subject.

37. Reading                 (出声) is a good way of learning English.

38. The nurse looked after so many                 (病人) but she felt very happy.

39. That's my grandmother. She is 84. You wouldn't believe how                  (活跃的) she is!

40. The boy lost his                 (能力) to walk when he was five years old.

41. 课堂上你应该注意?讲。

You should                           &nb