1Have you ever been in London?-No,I haven't. 2Have you ever driven a car?-Yes, I have 3Have you ever been so tired that you couldn't move a finger?-Yes, I have. 4Have you ever been on a vacation in Europe?-No,I haven't. 5Have you ever had an operation? -No, I haven't.
2Have you ever driven a car?-Yes, I have
3Have you ever been so tired that you couldn't move a finger?-Yes, I have.
4Have you ever been on a vacation in Europe?-No,I haven't.
5Have you ever had an operation? -No, I haven't.