4. Alice has not written the letter.
Has Alice written the letter? -Yes, she has/ No, she hasn't.
Who has written the letter?
Alice has written the letter, hasn't she?
Has Alice written the letter or read the book?
5.
1. visited
2. I have just met my friend
3.He hasn't come back yet
4. have made
5.Have you ever been to Moscow?
6.Did you play...