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 buying new car for months.
4.Lesley hasn't been living in Mag's flat since last Christmas.
5. You have been eating too much since our holiday in March.
6. We have been looking forward to see you since weeks.
7. What have you been doing since last summer?
8. I haven't been learning Spanish for very long .
Удачи :)