Are the sentences right ✓ or wrong ✗? Correct the sentences.
1. I was walking in the park when I was meeting Francis.
2. If I won a lot of money, I’d buy a horse.
3. She has bought that dress on holiday last year.
4. Fred couldn’t drive a car until he was thirty years old.
5. She promises she is cleaning her room later.
6. They haven’t arrived already.
7. I think she should to tell him she is sorry.
8. That’s the unfriendly man whose lives next door.
9. Margaret has been my best friend for ten years.