题目内容：
请根据下面的短文回答第题： YOUR BUILDING SERVICE
√ We help people in this part of the city by：
* checking all plans(方案)before people build new houses or make changes to old Ones；
*checking water pipes(管道)；
*looking at any problem buildings and making sure that they are all right·√We check 900 building plans each year．
√We look at 700 building prates each month to see if things are going on well.
WHERE CAN YOU GET MORE DETAILS
√The Building Service is at the City Hall，Kenton，CNl 6KJ．Telephone：676316 or 676317
√We have office hours for people to come and talk about their problems．
HELP US TO HELP YOU
√If you do building work，please think of other people·
√Be nice to people living next door．
√If you want to talk to us about your problems，please give as many details(细节)as possible.
√If you see any building problems，please let us know right away·
WHAT YOU CAN DO IF THINGS GO WRONG
√If you are not happy with us and have anything to say about the Building Service. please come，phone or write to The Planning Office。City Hall，Kenton，CNl 6KJ．Telephone：676317
How many building places does the Building Service look at each month to see if things are goin9011 well? A．700．
B．900．
C．We don’t know·
参考答案：
答案解析：