Complete the sentences with the present perfect continuous.

Okay, let's complete the sentences using the present perfect continuous tense. 1. **Question:** You look tired. .................. (you/work) in the garden all afternoon? **Answer:** Have you been working **Explanation:** We use "Have you been working" to ask if someone has been working continuously in the garden. 2. **Question:** We .................. (use) solar power since 2015. **Answer:** We have been using **Explanation:** "Have been using" implies that we started using solar power in 2015 and continue to use it until now. 3. **Question:** The children .................. (play) on the computer for a long time. Tell them to stop. **Answer:** The children have been playing **Explanation:** "Have been playing" indicates that the children started playing a while ago and are still playing. 4. **Question:** A lot of animals .................. (lose) their natural habitats for the last 20 years. **Answer:** A lot of animals have been losing **Explanation:** "Have been losing" shows that animals have continuously been losing their habitats over the past 20 years.