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.