There will be ______ red-crowned cranes in the world if we don’t protect them.
A. less and less B. a little
C. more and more D. fewer and fewer
Environment(环境) is very________，but you don’t understand the_______ of it，you always drop litter everywhere．
A. important，important B. important，importance
C. importance，importance D. importance，important
You can call me______0512-51234567 or e-mail me ____ lily@changshu.com.cn.
A. on, at B. at , on C. by , on D. on, on
I did my homework very , so my father shouted at me .
A. careless ; angry B. carelessly ; angrily
C. carelessly ; angry D. careless ; angrily
There are many fish in this lake, and the birds can catch _________ food.
A. it as B. them as C. them for D. they as
Mr. Green told us _____ turn the lights off when we leave the classroom.
A. not forget to B. not to forget
C. not to forget to D. to forget not to
