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Complete the sentences with the present perfect continuous.
You look tired .... ( you, work) . In the garden all afternoon ?
We.... ( use ) solar power for ten years now.
The children ..... (play) on the computer for a long time.
Tell then to stop. A lot of animals ..... ( lose ) their natural habitats recently.

1. You look tired. Have you been working in the garden all afternoon ?

2. We have been using solar power for ten years now.

3. The children have been playing on the computer for a long time.

4. Tell them to stop. A lot of animals have been losing their natural habitats recently.

Пояснение:

Для того, чтобы поставить глагол в форму времени Present Perfect Continuous, требуется вспомогательный глагол to be во времени Present Perfect и причастие настоящего времени (форма V-ing) смыслового глагола.