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Fire is very useful in our everyday life and it (1)
is very dangerous.So we must keep away all (2)
the things that can easy catch fire.If we discover(3)
a fire our room,we should call up the fire (4)
station at once.In the same time we should call (5)
out our neighbours and try to stop a fire (6)
from spreading.If you can leave the (7)
biulding as quickly sopossible,remeber(8)
we mustn't return back to the room (9)
请改并解释一下1,2,3,6,7题原因,谢了!
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