1. My sister was a student last year, but now she is a doctor.
2. He will be twenty soon.
3. Let's visit him, he will be glad to see us.
4. They are so rich that they can afford to go to the restaurant every day.
5. She didn't understand that she was guilty, so she didn't apologize.
6. He was cheerful when he came. Who has injured him?
7. His dog is very clever, it even brings newspaper every morning.
8. Our neighbors are so noisy, they always listen to music at nights.
9. Let's wait, he will be here in a minute.
10. Her brother is archaeologist, he is in expedition now.
How many rooms are there in your flat? — There are four rooms in my flat.
What did you buy? — I bought a pair of shoes?
Do you like playing football? — No, I don't like playing football.
Have you flown by plane many times? — Yes, I have flown by plane many times.
1) We live on the planet is Earth.
2) Continents are the large.
3) -
4) Vietnam and India are in Asia.
5)
6) Russia is the largest country in the world.
2. Mustn’t 3. Shouldn’t 4. Should 5. Mustn’t