Say if the following sentences are correct or incorrect. Correct them if necessary.

1. Have you ever been to Thailand?
2. I've had sausages for lunch at half past one.
3. She enjoyed herself at the party last night.
4. I've read that book, but I didn't like it much.
5. Tom left school one year ago.
6. My cousins have lived in Dublin since they were children.
7. We have worked here for a year and a half.
8. My parents lived in Britain for a couple of years.