Simple past or present perfect tense

Answers

1. I met an old friend of mine yesterday.
2. I have read all the plays of Shakespeare.
3. She has acted in two films.
4. I have seen a ghost.
5. She refused to help him.
6. She left home early.
7. Janet told me a story the other day.
8. Maya and her family moved to Chicago last year.
9. I have not heard anything from them since then.
10. He said that he would not do it.
11. Amir said nothing when he heard the news.