3. listen again. write true or false.
correct the false sentences.
1 bess's grandparents moved house recently.
2 lily and alan went walking around the lake.
3 lily hurt her leg on sunday.
4 the weather was good at the lake.
5 lily fell off her bike when she hit a dog.
6 alan cycled into lily's bike.
7 lily fell into the lake.
8 the dog was jumping on alan.​

Present Continuous.
1. The old man is walking in his room.
2. Peter is playing computer games.
3. They are having a big dinner together.
4. What they are talking about?
5. What language you are studying?
Present Simple.
1. We are interested in rock music.
2. My grandmother isn't nervous and she is rarely upset. 
3. My brother is at home.
4. Helen is a wonderful painter.
5. Do you have any idea where he is?
Past Simple.
1. I slept for two hours.
2. I did't believe him.
3. Did she know the truth?
4. I decided to join to fitness club.
5. I didn't open it.

I think that we have many environmental problems for example air pollution, water pollution and more others. Air pollution is a very serious problem because it causes global warming and as a result climate change. The reason for global is polluting the atmosphere with green house gases. This can be a big problem for many plants, animals and people.
Pollution is a very serious and we need to control and prevent it. We can reduce the amount of industrial wast and sewage. We can recycle all toxic materials. But the main thing is try to use the nature with care.