一、单选题（本大题共20小题, 共10. 0分）
1． —Could you tell me some examination skills?
—Sure. In the exam, the ____ you do, the ____ mistakes you will make.
A．carefully; less B．more carefully; fewer
C．careful; less D．more careful; fewer
2． He wrote his ____ novel when he was ____.
A．five; in his thirties B．fifth; in his thirties
C．fifth; in his thirtieth D．five; in his thirtieth
3． There isn't ____ paper in the box. Would you go and get ____for me?
A．some; some B．any; any C．any; some D．some; any
4． It's said that ____ of the water around the world ____ polluted.
A．two third; is B．two thirds; is
C．two thirds; are D．two third; are
5． Da Vinci's notebooks ____ some ____ drawings of flying machines.
A．include; interested B．include; interesting
C．including; interested D．including; interesting
6． While visiting Paris, I tried my best to visit ____ I can to tour around ____.
A．as many as; as many places as possible
B．as many as; as much place as possible
