Ex 5.
2. He doesn't think the computer's got a virus.
3. We are using the latest software.
4. We always use our computer to do serious things.
5. There are lots of computers at my school.
6. Diane hasn't repaired my laptop.
7. All of my colleagues can type quickly.
8. Both of our parents can use computers.
9. He needs a computer at home.
10. I didn't understand anything he said.
Ex 6.
2. I go swimming about three times a week.
3. Who works with you?
4. How many countries have you been to?
5. In the past, I used to walk to school.
6. I think you are correct.
7. I play a lot of tennis in my free time.
8. I lived in London for three years and I love it.
9. I went to Brazil last year.
10. Who do they work with?
