Ответ:

1. Is she 15 years old? 2. Does he have a bike? 3. Does Kelly play the piano? 4. John doesn’t have a dog? 5. Do they live in London? 6. He doesn’t cook? 7. Can dogs swim? 8. No rain? 9. Are Mike and Julia friends? 10. Does Helen speak German? 1. She has been studying English for 10 years. 2. He has been reading in his room since early morning. 3. We have been traveling for 2 years now. 4. They drive from 10 am. 5. Harry has been writing the article since yesterday. 6. Children do their homework from 16:00. 7. Molly cooked dinner in 3 hours. 8. I am exercising, I am very tired.