Помогите составить 15 предложений Perfect Tenses

1. Have you seen Luna? 2. I haven't seen her. 3. But I have heard her speech. 4. I wish I had stayed at home. 5. The children will have grown up, and the parents will move to a new house. 6. He has done his homework. 7. He has been walking with his friends today at 4 p.m… 8. Have been doing your homework for several hours? 9. I've been in the Zoo today. 10. I have seen Justin Bieber several times there, but I still doubt it was him. 11. He thought that Sarah had been to school today. 12. He thought that Sarah had already done her homework by 5 p. m… 13. I have just read it in the Daily Prophet. 14. It has been such a fun day. 15. Have you told her that she'd been invited to Slughorn's Christmas party?