1. I think    impresses me about his painting is the colours he uses.

A. what     B. that

C. which    D. who

20. After the war, a new school building was put up    there had once been a theatre.

A. that      B. where

C. which    D. when

19. I'll make some sandwiches, just    we get hungry later.

A. even if       B. as though

C. if only         D. in case

18. It was the training     he had at school    made him a good jumper.  

A. what; what        B. that; that

C. what; that       D.  that; had

17. He likes to make a list of    he wants to buy before shopping.

A. which     B. that

C. whether   D. what

16. ―How did you pass the challenging test?

—It was a long time    I found a series of suitable methods.

A. when       B. until

C. since      D. before

15.   is reported in the newspapers, the Democratic People's Republic of Korea's latest nuclear test has led to a more tense situation.

A. It       B. As

C. Which     D. That

14.    is well known to us all is he has become one of the most popular NBA players.

A. It; that       B.  As; that

C. What; what       D.  What; that

13. From    seemed to be a great, cloudy distance,he smiled at her,and she smiled too.

A. it     B. that

C. what    D. which

12. Our English teacher often creates an environment    we are given the opportunity to practise spoken English.

A. when     B. which

C. where    D. that