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Today,ther are many old buildings in cities.(nowadays,such many old bulidings in our cities)Numerous people are confusing about(whether) old buildings should be destroyed and(or) replaced.

In my opinon,,(as far as i'm concern),(i'm approve of that )some old buildings should be destroyed(due to )Nowadays there are a vast number of unsafe old buildings in cities.(a vast number of unsafe old buliding in our cities are un safe).(Furthermore,what makes us pay more attention to the old buliding is that it ) (The buildings probably 删去）(will) be collapsed and hurt people.S(o these buildings must be destoryed because they are very dangerous.删去）（what's more)(Also,there are many old buildings are 删去)spoiling the cityscapes.，（the old buliding is exactly attractive).(Though )Modern buildings are beautifu(l and if old buildings be replaced with them,cities will be more confortable and people will like them.删去），old buliding couldn't be more confortable and absorbed with replacing.)
滥用there be 巨型导致文章空洞！！

In other hand,（actually)some old buildings have(own) historical value(with）( .Some historic buildings represent 删去)specific historical events.（so that not only can we appreciate the builiding but also we can learn more about history).(We can visit these buildings and learn history删去).Futher,some old buildings are beautiful and they have unique architectural styles.Also,there are many unique ethnic architectures and they can ecpand our horizon.

In conclusion,some old buildings must destoryed because they are unsafe and spoil the cityscapes.They should be replaced weith morden buildings. But some old buildings have historical value,they should be effectively preserved.