3. 树木更少了，空气和水污染越来越严重。

2. 这里的人们过着简朴的生活。

1. 你能看见各种各样的鱼在清水里游。

(   ) 12. [2015 • 盐城]With the development of modern industry,there will be       living space for wild animals.

   A. fewer and fewer

   B. less and less

   C. more and more

   D. bigger and bigger

(   ) 11. [ 2014 .德州]—It's one of the       things in the world to stay with friends.

一I agree. It always makes us relaxed.

   A. worst   B. happiest

   C. busiest   D. hardest

(   ) 10. [2015 •青岛〗This camera is too expensive. I'd like a       one.

   A. cheap   B. cheaper

   C. cheapest   D. more expensive

(   ) 9. [2014 -杭州]Of the two shirts,I'd like to choose the      one to save some money for a cap.

   A. cheapest   B. cheaper

   C. more expensive   D. expensive

(   ) 8. [2014 •重庆B] Come here at Christmas!You can buy      clothes in a year.

   A. the cheapest   B. cheaper   C. the worst   D. worse

(   ) 7. [2014 • 南京]―Do you enjoy Han Lei's songs?

—Yes. He is the winner of Vm asinger 11 . I can't think of anyone with a       voice.

   A. better   B. best

   C. more   D. most

(   ) 6. [2015 • 杭州]My time in the middle school was one of        periods of my life.

   A. exciting   B. more exciting

   C. the more exciting   D. the most exciting