ПЕРЕТВОРІТЬ В ПРАВИЛЬНІ ЧАСИ

1. it rained all day yesterday.
2. did you see Maria last week?
3. Gary was studying when i arrived.
4. when did you send the email?
5. have you ever seen this movie?
6. when the guests arrived, i had already cooked dinner.
7. I didn't understand what you said.
8. when I reached airport the flight had already left.