Упр.3 Модуль 8 Progress Check ГДЗ Spotlight 7 класс

Complete with the present perfect continuous form of the verb in brackets.

1. He has been working here for over ten years.
2. Jill has been swimming in this lake since she was a child.
3. How long have you been taking care of this injured bird?
4. They have been studying very hard for their exams.
5. My parents have been donating to WWF for a long time.
6. The government has/have been trying to reduce pollution for years.