阅读理解，根据短文内容，判断下列句子的正(T)误(F)
Hundreds of years ago, life was much harder than it is today. People didn't have modern machines.
There was no modern medicine, either.
Life today has brought new problems. One of the biggest is pollution. Water pollution has made our
rivers and lakes dirty. It kills our fish and pollutes our drinking water. Noise pollution makes us talk
louder and become angry more easily.
Air pollution is the most serious kind of pollution. It's bad to all living things in the world. Pollutes air
from cars, planes and factories is so thick that it is like a quilt over a city. This kind of quilt is called
smog.
Many countries are making rules to fight pollution. Factories must now clean their water before it is
thrown away, and they mustn't blow dirty smoke into the air.
We need to do many other things. We can put waste things in the dustbin and not throw it on the
ground. We can go to work by bus or with our friends in the same car. If there are fewer people driving,
there will be less pollution. Rules are not enough. Every person must help to fight pollution.
( )1. Long ago,life was much harder than it is today because there were no modern medicine.
( )2. Pollution is the biggest problem in today's life.
( )3. The most serious kind of pollution is water pollution.
( )4. Factories must clean their water before they use it.
( )5. It's a good way to stop driving in order to fight pollution.