Polluted, underwater cities, moon shuttle, robotic housemaid, online schools, glass dome
1. A
travels into space.
2. You can't swim in this lake because it is
3. I think that people will live in
in the future.
4. My friend wants to have a
because he
doesn't like to do the housework.
5. They built a new house with a
in it.
6. Students will study at
..in the future.​

If l knew her well, I would introduce you to her. 2. If I spoke German very well, I would go to live in Germany. 3. If she didn't miss classes, she would do well. 4. If he had more practice, he could speak Spanish fluently. 5. If they had much money they would spend their holiday on the Bahamas. 6. If you drove more carefully, you would not crash your car. 7. If he bought this expensive motorcycle, he would have no money left. 8. If the dog began to bark, you would know about the danger. 9. If they did all sums, they could get better marks. 10. If she were more sociable, she might have a lot of friends.

Let me tell you  my hobbies!
My favourite type of music is rock.
OK, I don't play any musical instrument, but I like to listen to music.
 And I sing well.
All my friends are fond of rock music, too.
Our dream is to from a rock band and to invite you all to our conert.
My hobby is looking after my pets
I have lots of them: a dog, a cat, a tortoise, a white mouse, a parrot.
One of my relatives wanted to get rid his goldfish.
Now they live in my flat.
 But one of  my favorite pets is a little hamster.
 It was sick when I took him from my friend. Now it's fine.
And it gets along with all other pets.

Там может быть несколько ошибок, потому что я сама сейчас немного занята. Но большинство должно быть верно.