Respuestas
1. I saw a penguin. I have seen a penguin
2. Did they eat breakfast?. Have they eaten brakfast?
3. Jennifer din't finish her homework. Jennifer hasn't finished her homework.
4. Did they meet the president. Have the met the president?
5. No, we dind't. No. we haven't
6. Did Roberto visit Vancouver?. Has roberto visited Vancouver
7. Yes, he did. Yes they have.
8. Mrs. Smith didn't read the book. Mrs. Smith hasn't readed the book.
9. He was a teacher. He has been a teacher
10. Were you in jail?. Have you been in jail?
11. I didn't clean my room. I haven't cleaned my room.
12. No, they weren't. No they haven't.
13. Was she sick? Has she been sick?
14. Did he swim in the ocean? Has he swim in the ocean?
15. They didn't arrive. They haven't arrive.
16. Where were they?. Where have they been.
17. We lived there for a year. We have been living here for a year
18. What did he do?. What has he done
19. It didn't rain for a long time. It hasn't rained for a long time
20. Who finished the homework?. Who has finished the homework