27. There______ a number of natural mysteries in the world that even make scientists ______.

　 A. exists; confusing　　　　　　　　　　 B. are existed; confused

　 C. exist; confused　　　　　　　　　　　 D. exist; confusing

26. The house is easily______ from the rest; it has a large blue door.

　 A. picked up　　 B. taken up　　 C. picked out　　　 D. made out

25. Books such as Harry Potter and Tom Sawyer’s Adventures ______ for children.

A. intend　　　 B. intends　　 C. is intended　　　 D. are intended　

24. Many New Zealand cities lie ____ a bay and ____ a natural, deep harbor.

A. on; enjoy　　 　 B. on; cover　　 　 C. off; include　　　　　 　 D. off; have

23. Ann never dreams of ______ for her to be sent abroad very soon.

A. there being a chance　　　　　　　　　 B. there to be a chance　

C. there be a chance　　　　　　　　　　 D. being a chance

22. The staff’s hope of improving the working conditions ______ their new manager.

A. keeps on　　 B. puts on　　 　 　　C. rests on　　 　　　　　　　 　D. holds on

21. Oprah Winfrey is ______black woman whose rise to fame is ______ inspiring story.

　 A. /;an　　　　 B. a; the　　　　　 C. the; the　　　　　 D. a; an