Doctors, nurses and teachers make a great contribution to society. It certainly is. But for some reason, for example, famous players get much more. I don't agree with that. It's unfair. Doctors, admit, often save someone's life. Teachers teach the same future doctors, so that they can then get a medical education. I would add Fireman to the list of the most important professions. They certainly save the lives of thousands of people!! And it is not clear why, those who know how to kick the ball, get more of those who save your lives...
1. Some governments have been trying to protect the environment for twenty years.
2. Have you been working at the TV studios since May?
3. Bill has been thinking about getting a new car for months.
4. Lesley has not been living in Meg's flat since last Christmas.
5. You have been eating too much since our holiday in March.
6. We have been looking forward to seeing you for weeks.
7. What have you been doing since last summer?
8. I have not been learning Spanish for very long.
9. Thomas has been writing his History essay since Saturday morning.
10. Have you been waiting for me for hours?
