VII. 51-55 BAABD 56-60 BACDD 61-65 CDAAC 66-70 ABACD

VIII. 71-75 FAGEC

IX. 76-80 DBAAC 81-85 CBADD 86-90 BCCDA 91-95 ACBDC

X. 96. safe 97. chalk 98. strict 99. invited 100. carry

XI. One possible version

Dear Sir or Madam,

I am a middle school student. I have recently learned from the newspaper that you are going to build a factory here in my hometown. There is no doubt that it is good for the development of my hometown and it will provide us with more jobs. Most of us stand by the program. However, some of us are worried that the factory will make much noise and pollute the environment of the area. I would like to know whether you have any plans for the environment protection. Would you please offer us more information about it?

I'm looking forward to hearing from you.

Yours faithfully,

Zhang Hua