Помогите пожалуйста безотлагательно 3. Fill in the sentences with the correct

Помогите пожалуйста безотлагательно
3. Fill in the sentences with the correct form of the verb in the Present Perfect.
1. We've already (have) lunch.
2. They have (begin) painting the living room.
3. We have (keep) this secret for three years.
4. He has never (drive) a motorbike before.
5. I have (be) sick all week.
6. The birds have (fly) south for the winter.
7. Don't worry, we haven't (forget) about the meeting.
8. You have (buy) a lot of clothes recently.
9. Have you (choose) your university yet?
10. Have you ever (drink) Turkish coffee?
11. She has (know) about this problem for three months.
12. Why has John (leave) already?