• Present perfect vs Past simple 7
Read the theory. Are there similar structures in
your language?
We use the present perfect for actions which started
in the past and continue to the present or for personal
experiences
I've lived here since 2002. He's flown a plane.
We use the past simple for actions which happened in
the past. The time is stated or it is implied. He went to the lake
last Saturday. (When? Last Saturday) Then they walked home.
(When? Implied time - after they left the lake)​

Protect the environment from industrial pollution .Keep the land, air and water clean.Keep our environment clean. All woods are home for animals. So behave as guests. Help nature. Protect it. Тhe Earth is our home.Don,t pollute it. When you hike, leave the place clean. Plant a tree to create home for birds, squirrels and other small animals.
it's not too late to solve these problems. We have the time, the money and even the technology to make our planet a better, cleaner and safer place. We can plant trees and create parks for endangered species. We can recycle litter. We can support green parties and put pressure on those in power. Together we can save the planet and all of us with it.

The capital of Estonia is Tallinn. It is one of the most beautyfull citys in Europe. It includes two parts: Old Tallinn and New Tallin. In the old part of this city you can feel the medieval atmosphere. All buildings in there are made of stones, and on the main square of Tallinn you even can see some people in medieval costiums. Just awsome! 
The new part doesn`t contain anything special. Just a usuall city in Europe. Anyway, you have to visit Tallinn and see everything with your own eyes. You will get fantastic impressions!