33. The reporter is　　　　　 about how people learn English.

32. You must　　　　　 , or we can't hear you clearly.

31. At first we had conversation in English, but we　　　　　 speaking in Chinese.

30. The teacher told us　　　　　 a conversation.

29. The pupils are having fun　　　　　 cassettes.

28. You　　　　　 if you are not careful to do your homework.

27. If you don’t know the word, you should　　　　　 it　　　　　 in a dictionary.

look up, do a survey, make mistakes, ask for, make up, end up, take notes, write down, listen to, read aloud

26. Mr Green said　　　　　 was important for learning English grammar.

25. It is impolite　　　 others.

A. to laugh　 B. laughing to　 C. to laugh at　　 D. laughing

24. I need a partner　　　 .

A. to speak　 B. to talk　　　 C. to speak of　　　　 D. to talk with