27. All of you know the fact _______ the farther away a thing is, the smaller it looks.

　 A. which　　 B. that　　 C. who　　 D. whether

26. – I drove to Zhuhai for the air show last week.

　 - Is that _____ you had missed the match?

　 A. where　　　 B. which　　　 C. what　　 D. how

25. ______ is known to us.

　 A. The light goes faster than sound　　 B. That the light goes faster than sound

　 C. That light goes faster than sound　　 D. Light does go faster than sound

24. _____ I like best was the poem recited by Louisa.

　 A. Who　　　 B. That　　 C. What　　 D. When

23. ______ is still unknown.

　 A. When and where this took place　　　 B. When and where did this take place

　 C. It was when and where that took place.　 D. This took place when and where

22. We were all overjoyed at the news ______ the experiment turned out a success.

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

21. This factory is quite different from ________ before.

　 A. what it was　 B. that it was　 C. which it was　 D. what was it

20. I want to leave my car. Can you tell me ________ near here?

　 A. if there’s a car park　　　　 B. is there a car park

　 C. if is there a parking　　　　 D. is there a parking

19. The book looked ________ it had been out in the rain.

　 A. that　　　 B. whether　　 C. as though　　 D. what

18. They lost their way in the forest and ____ made matters worse was ___ night began to fall.

　　 A. what; that　　　　　 B. it; that

　 　C. what; when　　　　 D. which; what