Ex. use the right form: present perfect илиpast simple. 1. the sun (not to rise) yet, but the sky in the east is getting lighter every minute. 3. i (not to read) the newspaper today. 5. how many times you (to be) to st. petersburg? 7. we (to go) to the country yesterday, but the rain ( to spoil) all the pleasure. 9. the lecture (not yet to begin) and the students are talking in the classroom. 11. she ( to leave) the room a moment ago. 13. when it all ( to happen)? 15. show me the dress which you (to make). 17. oh, close the window! look, all my papers (to fall) on the floor because of the wind.

1. The sun has not risen yet, but the sky in the east is getting lighter every minute. 3. I have not read the newspaper today. 5. How many times have you been to St. Petersburg? 7. We went  to the country yesterday, but the rain spoiled all the pleasure. 9. The lecture has not begun yet and the students are talking in the classroom.  11. She left the room a moment ago. 13. When did it all happen? 15. Show me the dress which you made. 17. Oh, close the window! Look, all my papers  have fallen on the floor because of the wind.

Привет = )вот: 
The sun has not risen yet, but the sky in the east is getting lighter every minute. I have not read the newspaper today. How many times have you been to St. Petersburg? We went to the country yesterday, but the rain has spoilt all the pleasure. The lecture has not yet begun and the students are talking in the classroom. She left the room a moment ago.When has it all happened? Show me the dress which you made. Oh, close the window! Look, all my papers have fallen on the floor because of the wind.