3/ Complete with the Present Perfect Continuous form of the verb in brackets. 1 He.... (work) here for over ten years. 2 Jill ..... (swim) in this lake since she was a child. 3 How long.... (you/take care) of this injured bird? 4 They.... (study) very hard for their exams. 5 My parents ..... (donate) to WWF for a long time. 6 The government .... (try) to reduce pollution for years.

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 been trying to reduce pollution for years.

Ответ: has been working, has been swimming, have you been taking care, have been studying, have been donating, has been trying.