Read the sentences. Some of the shaded words and phrases have mistakes.
Find 13 mistakes and correct them.
1.
Air pollution become an important issue all over the world in the past few decades.
2.
Some people in Beijing have been already starting buying bottled air from other countries in order not
to breathe in the dirty air of the city.
3.
Let’s not use plastic bags because they end down in landfills, when they will stay for centuries.
4.
Air pollution effects trees, plants, animals and humans. Due to this problem, millions of people become
ill every year and many of them die.
5.
Last week, we have started to plant trees in the school yard. We have been planting
40 trees since then. We want to make the school yard a green place where we can spend our free time.
6.
We feel safe in light-up streets at night, but we forget that artificial light is a threat for our natural environment.
7.
Last year, the family bought a water barrel and started storing the rainwater. They have been putting two more
water barrels since last year.
8.
Last week I learned that excess noise damages hearing. Therefore , I decided not to listen to loud music any more.
9.
It is a good idea to drive hybrid car. If we use them, there will be less pollution.
10.
Trees clean the air, store water, preserved soil and provide homes for animals. So, let’s plant trees, not cut them.