1. Many experts agree that once these treasures are _______ to the air, great harm will be done to them. So they think it better not to unearth the treasures.

A. exposed　　　　　　　　　 B. threatened

C. constructed　　　　　　　　 conserved

35. -Ken, 　　　　　, but your TV is going too loud.

-Oh, I ’m sorry. I’ll turn it down right now.

A. I’d like to talk with you　　　　　　 B. I’m really tired of this

C. I hate to say this　　　　　　　　　 D I need your help.

34. The disco, digitally 　　　　　in the studio, sounded fantastic at the party that night.

A. recording　　　　 B. having recorded　　　 C. to be recorded　　　　 D. recorded

33. While he was investigating ways to improve the telescope, Newton made 　　　discovery which completely changed 　　　　　man’s understanding of color.

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