29.　 The reason for his success is ___ he worked hard. A. why 　 　B. that　 C. what　 D. because

28.　 You can give the book to ____ hasn’t read it.

A. who　　　　　　　　　 B. whom　　　　　　　 C. whoever　　　　　　 D. who ever

27.　 Was it in the village __ the ancient tomb was discovered. A. that B. where C. in which D. X

26.　 The task was hard, ___ he finished it himself.

A. but　　　　　　　　　　 B. however　　　　　　 C. otherwise　　　　　 D. therefore

25.　 Please put the magazine ____.

A. where the magazine needs　 B. where it was C. in which it stands　　 D. whether it was

24.　 I have no idea ___ he will be back. A. when 　　　 B. which　　　　 C. that　　　　　　 D. what

23.　 They expressed the hope ____ they would come over to China.

A. which　　　　　　　　 B. that　　　　　　　　　 C. whom　　　　　　　 D. when

22. If you study hard, __ you will make much more progress. A. or else B. otherwise　　 C. and D. X

21. We have decided to build another university in our city, ____ difficulties.

　　　 A. whenever　　　　　 B. wherever　　　　　 C. however　　　　　　 D. whatever

20. Most sheep are white ____ most goats are black.

　　　 A. while　　　　　　　　 B. when　　　　　　　　 C. and while　　　　　 D. on the contrary