Https://www.youtubeind.com/watch.php?vid=3b61a4df7 https://www.youtubeind.com/watch.php?vid=5e009af60 https://www.youtubeind.com/watch.php?vid=73780114e https://www.youtubeind.com/watch.php?vid=db8ff7554 https://www.youtubeind.com/watch.php?vid=b9a6876ff

всм

1. Environmental pollution causes ... to people's health. D damage
2. Everyone should learn about using ... resources responsibly. B natural
3. The wildlife park was created to protect ... species. B endangered
4. We should try to reduce our water ... . A consumption
5. The cost of cleaning up toxic ... is very high. A waste
6. If we cut down these trees, we will destroy the natural ... of the birds and animals that live in them. D habitat
7. What is the future of genetically ... food?  B modified
8. One of the major environmental ... that needs to be considered is deforestation.
C issues
9. Global is causing climate changes.  D warming
10. We must investigate … energy forms.  B alternative

1At last I have done my homework.
I did my homework after school yesterday.
2I have been to England.
I wad in England last summer.
3I have just written a letter to my granny.
I wrote s letter to my granny yesterday.
4What book have you recently read?
What book did you read last week?
5I haven't seen my friend since Monday.
I saw my friend last Monday.
6While travelling to England I met many friends.
I met many friends last summer holidays.
7I have never spoken to him.
I spoke to him five minutes ago.
8Why have you left the door open.
I left my flat at eight o'clock yesterday.
9Look!I have bought a new dress!
I bought a new dress two hours ago.
10The rain has stopped and I can go for a walk.
The rain stopped an hour ago.