Вот ответы, надеюсь что это правильно!!!
1)Have you bought your train tickets yet?
2)The kitchen is a complete mess! What have the children been doing?
1. (a)
Have you made your bed?
2. (a)
Has Anne arrived yet?
Я положила книгу на стол - I put the book on the table
1) Yes, I was
2) they did
3) he was not
4) they were not
5) he did not