Вижу, ты Азербайджанка, ведь у меня такой же учебник)))
We live on the Earth. The Sun shines on it, rain falls on it, the wind blows on it. The world is all around you. You can see many interesting things in the world and keep your eyes open. The world is full of wonderful things. What can you see around you? You can see the blue sky, the black night, different plants, trees and flowers, hills and mountains. You can see seas, rivers, lakes and waterfalls, too. All these things are the world. The Earth is 4,600 million years old. Men have lived on the Earth for only 35,000 years, but during this time we have changed our planet in many ways. Many of the things we have done are good, but many more are bad for the Earth.
1) Has Sarah answered your e-mail?
2) You haven't worked very hard. You should try harder.
3) Why are so many people here? What have
happened?
4) I have finished university and started working now.
5) My parents are coming this weekend. They haven't seen my new flat before.
6) Thank you so much! You have helped us a lot.
7) Has Annie washed the dishes?
8) Have you traveled a lot in your life?
9) We have explained everything to them.
10) It`s nice to hear you but why
you haven't called me before?
11) Please stay for dinner. Tony has cooked a lovely meal
12) She have never met him before.
13) Have Tony and Jane arrived yet?
14) Somebody have just knocked on the door.
15) My dad has been to Germany 2 times.