短文改错
Great changes have been taken place in my village．Ten years ago, the small and low houses, which lie
on the north of a lake, produced much waste．As the result, the lake was serious polluted．To the west
was a sandy field, that was the source of dust．Better still, a brickyard on the southwest side of the lake
used up a great deal good soil．Now the poor house have been replaced by green trees and the brickyard
by tall buildings．The sandy field that the villagers used to ploughing has been covered with fruit trees．
On the lake the villagers often spend his spare time boating and fishing．
改错:
