31. The reason _______ he didn’t come to our party was _______ he took a missing boy back home on his way.

A. why…because　 　 B. why…that　　 　　　　　　　 C. that…why　　 　　　　 D. that…that

30.____ is quite clear.

　 A. Where is the fighting　 　　　　　　　　　　　　　 B. Why is the fighting

　 C. What war is　　　　　 　　　　　　　　　　　　　　　　　 D. What is war being

29. We will soon discuss the problem ______we should take some effective measures to protect the animals and plants in our region.

　 A. if　　 　　　　　　　　 B. whether　 　　　　　　　　　　 C. that　　 　　　　　　　　　 D. ever since

28.____ is no possibility____ Bob can win the first prize in the match

A. There…that　 　　　 B. It…that　 　　　　　　　　 C. There…whether　 　　 D. It…whether

27. Greenland, ____ island in the world, covers over two million square kilometers.

　 A. it is the largest　 B. that is the largest　　　　　　　 C. is the largest　　 　　 D. the largest

26. They have no idea at all____.

　 A. where he has gone　　 　　　　　　　　　　　　　　 B. there did he go

C. which place has he gone　 　　　　　　　　　　　 D. where has he gone

25. There was much certainty ______the board of directors would agree to our various proposals for increasing sales.

　 A. which　　 　　　　　　 B. why　 　　　　　　　　　　 C. /　 　　　　　　　　　　　　 D. that

24.It is important ______you　 win or lose ; what matters is how you play the game .

　 A. whether　　 　　　　 B. as if　 　　　　　　　　　　 C. whom　 　　　　　　　　 D. that

23. I had neither a raincoat nor an umbrella. ____ I got wet through.

　 A. It’s the reason　 　 B. That’s why　 　　　　　 C. There’s why　 　　　　　 D. It’s how

22. Go and get your coat. It’s____ you left it.

　 A. there　 　　　　　　　 B. where　 　　　　　　　　 C .there where　 　　　　 D. where there