помогите пожалуйста!!

1. I've finished my painting. Have a look at it!

2. My Mom has called me three times this morning.

3. I haven't done this exercise yet.

4. Have you ever been to Nigeria?

5. I've known him since 2002.

6. She's just laid the table.

7. The weather has been nasty since morning.

8. How long have you been in the room?

9. Where have you been?

10. I've wanted to go to Disneyland since childhood.

Слова маркеры: since, just, already, ever, this morning, yet.

Present Perfect - показывает на наличие результата прошедшего действия к настоящему моменту.

Первый пример (разбора):

1. I've finished my painting. Have a look at it! - Я закончила (рисовать) свою картину. Иди посмотри! (Итог я окончила свою картину, не главно когда картина нарисована, итог вот на данный момент картина перед глазами, иди посмотри!