4．They are talking about the people and the things which they saw on their way home．

3．Have you been to the place where she works there ?

2．Who is the comrade you talked with him?

1．Is this the book your father bought it for you?

27. The place ___you are going to visit is the ruin of a place. A. in which 　　　　B. at which 　　C. where 　　　　　　D. which 28. The factory ___I am going to is the place ___my mother used to work many years ago. A. where, where 　　B. where, which 　C. which, where 　　　D. that, which 29. Don’t do such things ___you are not sure about. A. that 　　　　　B. which 　　　　　C. as 　　　　　　　D. what 30. Rober is good at language, ____we all know. A. because 　　　B. for 　　　　　　C. as 　　　　　　　D. since

18.The reason ___he didn’t come was ____he was injured. A. that, because 　B. why, that 　　　C. why, because　 　D. that, that 19.He must be from Africa, ____can be seen from his skin. A. that 　　　　　B. as 　　　　　C. it 　　　　　　　D. what 20.His father died last year, ____made it impossible for him to go abroad. A. when 　　　　B. which 　　　C. as 　　　　　　　D. that 21.___is natural, he married Mary. A. It 　　　　　　B. What 　　　　C. Which 　　　　　D. As 22.The buses, ____were already full, were surrounded by an angry crowd. A. most of them　 　B. most of which 　C. which most 　　　D. that most 23.All___is needed is a supply of oil. A. the thing 　　　B. that 　　　　C. what 　　　　　D. which 24.He paid the boy 10 dollars for washing ten windows, most of ___had not been cleaned for years. A. these 　　　　　B. those 　　　　C. that 　　　　　　D. which 25.In the dark street, there wasn’t a single person ______she could turn for help. A. that 　　　　　B. who 　　　　C. from whom 　　D. to whom 26. This is one of the means ____the electric energy is conducted from one place to another. A. by which 　　　B. by that 　　　C. through which 　　D. through that

14．①Tom，　　 　we had expected，got the 1st place in the competition(比赛)．

A as B which C whom D who

　②Tom，　　 　we had expected to help us，didn’t even show his face .　

A as　 B whom　 C that　 D which

13．①The sun heats the earth，　　 　we all know．

A that　　 B which　 C as　 D where　　

　 ②The sun heats the earth，　　 　makes it possible to grow crops．

A which　 B that　 C as　 D where

12．①The story happened on a day　　 the weather was wet and cold．

A when B which C in which D on when

　 ②The story happened on a day　　 was wet and cold．　

A then　　 B on which　 C which　 D ／

11．①She will fly to Washington，　　 　is the capital of the U．S．

A that　 B where C which D in which

②She will fly to Washington，　　 　she can enjoy herself．　

A where　 B that　 C which D ／