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 It seems that living green is          easy and affordable. A small step masks a big difference.   

A. exactly         B. fortunately        C. surprisingly       D. hardly  

The World Health Organization gave a warning to the public without any  when the virus of H1N1 hit Mexico in April, 2009.

A. delay              B. effort              C. schedule          D. consideration

 The Somali robbed frequent attacks on the sea urged the United Nations to  all nations to take immediate action.   

A. fight for       B. apply for      C. call on          D. wait on  

We are at your service. Don’t           to turn to us if you have any further problems.

A. beg          B. hesitate          C. desire       D. seek  

 -Your mum is very kind.   

-Yeah, My mum is pretty considerate, you know what        ,she always arranges everything around me.   

A. she means       B. you mean      C. I mean         D. we mean  

For a moment nothing happened Then        all shouting together.   

A. voices had come     B. came voices     C. voices would come     D. did voices come

It’s helpful to put children in a situation         they can see themselves differently.

A. that          B. when         C. which           D. where  

-How amazing it is that astronauts are exploring outer space!  

-It’s a challenge, I guess,         man against nature.   

A. of         B. for             C. by           D. about  

－Why does the Lake smell terrible?  

－Because large quantities of water       .   

A. have polluted       B. is being polluted    C. has been polluted   D. have been polluted

 Bruce, I really appreciate your handwriting.   

-          .   

A. I practice every day                B. Thank you very much  

C. No, I don’t think so                 D. Well, it’s not good enough