(   ) 15. About seventy per cent of our earth      with water.

A. is covering    B. is covered C. are covering    D. are covered

(   ) 14. Some students are playing      on the playground while the rest      doing their homework in the classroom.

A. happy;are B. happy;is C. happily;are D. happily;is

(   ) 13. This kind of computer looks      and sells      in the shop.

A. nice;well B. good;good C. nicely;well D. good;nice

(   ) 12.      animals are in danger and there will be      space for them if we don't take action.

A. More and more;more and more B. Less and less;less and less

C. More and more;less and less D. Less and less;more and more

(   ) 11. Do you need more people      you      the vegetables?

A. help;water B. to help;water C. help;to water D. to help;watering

(   ) 10. He________ the importance of their visit      the small town.

A. do not understand;to B. does not understand;at

C. does not understand;to D. does not understood;to

(   ) 9. He always thinks more of himself than       so nobody likes him.

A. other    B. the other C. others    D. the others

(   ) 8. Today the forests are getting fewer and fewer. We must      down too many trees.

A. keep people from cutting  B. prevent people from cutting

C. stop people cutting    D. all the above

(   ) 7. You can call me       025-51234567 or email me      lily@yahoo.com.cn.

A. on;at B. at;on C. by;on D. on;on

(   ) 6. How often do you do a       ？

A,birds count B. bird counts    C. bird count D. bird's count