Помогите пожалуйставсе предложения.

1. I've been looking through the articles since the morning
2. He's been playing football since his childhood
3. She has been talking on her mobile for an hour
4. How long have you been studying English?  I've learning this languauge for 3 years
5. They've been discussing this questin for an hour and a half
6. Children have been watching TV for 4 hours.
7. He has been thinking about her all day
8. How long has she been waiting for a bus?  She's been waiting for a bus for a quater of hour
9. We have been discussing work plan since five o'clock
10. how long have you been working in the library? i've been working here since the morning.
11. Children have been already arquing a half an hour
12. How long have the children been playing outside? They 've been playing outside since 10 o'clock

13. it has been  raining since the morning
14. he has been living in London for 10 years
15. Who has been working at the factory sinsce 1970?