Добрый день, помогите, пожалуйста, раскрыть скобки. (употребите глаголы в Present Perfect Continuous)

1. Her phone has been ringing for ten minutes. I wonder why she doesn't answer.
2. Have you seen my bag anywhere? I have been looking for it for ages.
3. He has been studying Russian for two years and doesn't even know the alphabet yet.
4. How long have you been waiting for me? - I have been waiting for about half an hour.
5. It has been raining for two days now. There'll be a flood soon.
6. We have been arguing about this for two hours now. Perhaps we should stop!
7. You have been driving all day. Let me drive now.
8. How long have you been smoking cigarettes?
9. It has been snowing for three days now. The roads will be blocked if it doesn’t stop soon.
10. Ann has been looking for a job for 6 months.
11. Where are the Browns? – They are traveling around Europe.- How long have they been traveling around Europe?
12. Peter has been living in Africa for the last three years.
13. I have been sitting here waiting for you for nearly an hour. I’ve already drunk four whiskies.
14. It hasn’t rained for a month now. The grass is very dry.
15. I have been going to this pub every evening for the last ten years.
16. You have been lying in the sun for two hours. You will get burned.
17. I have been preparing lessons for tomorrow for two hours and I haven’t finished yet.
18. Where is the key? I have been looking for it for half an hour.
19. How long have you been repairing your car? – Since morning.
20. Jim has a beard. He has been wearing it for ten years.

Я сам его плохо знаю