36. Asking for information or help is a very common and necessary activity. (Doing... is...)

造句：帮助别人是一个十分普通而又必要的活动。

35. You must hand in your history homework by the weekend.(改为被动语态)

 Your history homework                          by the weekend.

34. My grandfather is too old to travel around.(改为同义句) My grandfather is        old        he        travel around any more.

33. Mike's car is more expensive than Susan's.(改为同义句)

 Susan's car is                    as Mike's.

32. Miss King hardly spoke a word the whole time.(改为反义疑问句) 

Miss King hardly spoke a word the whole time,               ？

31. Mr Brown said, "Don't make such a mistake again,Margaret."(改为间接引语)

 Mr Brown told Margaret                    such a mistake again.

30. 我们需要学会如何礼貌地提出请求。

We need to learn        polite when we make requests.

29. 为了不要再数学考试不及格，约翰已经在图书馆学习了将近两个星期。

John has been stud—g in the library for nearly 2        weeks                           fail the math exam any more.

26. 这个故事听起来很有趣。

This story                   .

28. 学习语言礼节与学习语法或词汇同等重要。

Learning about language etiquette is just                      learning grammar or vocabulary.