My sister likes learning English very much, but she doesn't  understand the meaning of the  phrase "lucky dog"

I don't like pollution. I have asked the boss of the factory to stop pouring waste water, into the fiver many times, but it does not work.

Tony doesn't like drinking water.  He always likes eating dry food.

Most men like swimming, but they have bad habits.

Nowadays, many students like watching TV at home on weekends for a long time.

A. I think it's a bad habit. Going for a walk after meals is good for us to keep fit and healthy.

B. Water is a very important thing that we need. Scientists say we should drink at least 2.5 liters of water a day. He should drink much water, too.

C. It's very important to understand the phrase meaning She should look it up in the dictionary.

D. We can see the colorful world by watching TV with our eyes. But we should protect our eyes carefully. We should have a rest after watching for one hour.

E. In summer, swimming is very good. But you should pay attention that you shouldn't go swimming after drinking or when you are very hot.

F. Many fish died from pollution. Water pollution brings people serious hurt, and we should get away from it.

G. The food there tastes good, but I think it's junk food. We should take care of our eating habits and eat more food with high vitamins and eat less meat.