SOS! Поставить слова или в present perfect либо в past simple

1. She just got out.
2. She left the room a moment ago.
3. We haven't solved the problem.
4.When did it all happen?
5. The morning was cold and rainy,but since 10 o'clock the weather changed and now the sun is shining brightly.
6. Show me the dress that you мейд.
7. Oh, how dark it is! A large black cloud covered the sky. I think it will start raining in a few minutes.
8. Oh, close the window! Look, all my papers fell on the floor because of the wind.
9. When did you open the window? - I opened it 10 minutes ago.
10. The sun hasn't risen yet, but the sky in the east is getting lighter every minute.
11. I saw you walking along the street the other day with heavy bags.
12. I haven't read the newspaper today.
13. It is very late , and trams stopped running: we must find a taxi to get home.
14. How many times have you been to St. Petersburg?
15. At last I have translated this article: now I shall have a little rest.
16. We got to the country yesterday, but the rain spoiled all the pleasure.
17. My watch was going in this morning, but now it stopped.
18. The lecture hasn't begun yet and the students are talking.