7．Anyone who has helped to save the drowning girl is worth praising.

　　8．The first thing that he did after arriving home was doing his homework.

　　9．The number of people that/who_come to visit this city each year reaches one million.

　　10．This is the room which/that my grandma used to live in.

　　11．The boy who/that broke the window is called Tom.

　　12．The picture which/that was about the accident was terrible.

　　13．The children who/that were injured in a car accident are being treated in the hospital now.

　　14．The woman who/that is shaking hands with my sister is a doctor.

　　15．This is the building_whose windows were all painted green.

　　16．That is one of the most interesting books_that_are sold in the bookshop.

　　Ⅱ.用定语从句合并句子

　　1．Do you know the man? The man spoke to the headmaster just now.

　　→Do you know the man who/that_spoke_to_the_headmaster_just_now?

　　2．I have seen the film. They're talking about the film.

　　→I have seen the film that/which_they're_talking_about.

　　3．The book was written by Mark Twain. He was a famous American writer.

　　→The book was written by Mark Twain who_was_a_famous_American_writer.

　　4．Last week Mary wore the dress. I gave it to her.

　　→Last week Mary wore the dress that/which_I_gave_to_her.

　　5．The girl is from America. Her father is a Chinese.

　　→The girl whose_father_is_a_Chinese is from America.

　　6．My grandparents live in a house. It is more than 100 years old.

　　→My grandparents live in a house which/that_is_more_than_100_years_old.

　　Ⅲ.语法与写作

　　1．This is the very hotel _(that)_I_stayed_at when I was travelling here.

　　这就是我在这儿旅行时住过的旅馆。

　　2．This is the very book that_I_am_looking_for.

这正是我要找的那本书。