短文改错 (共10小题;每个1.5分,满分15分)
Like many other places, our hometown is either facing
the problem of pollution. Unfortunately, people there have
realized the importance of protection the natural environment.
Factories have been taken measures to stop pouring polluted
water into the rivers. The citizen no longer put waste, such
as rubbish or human waste into the rivers. Every year,
a great number trees are planted. As a result,
the water in the rivers are becoming cleaner and cleaner.
The hills around the city are covering with green trees
and the air there is much more fresher than before.