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1. What would you have done if it had been a holiday yesterday?
If it had been a holiday yesterday, I would have met with my friends at the park.
2. If she had been born in 1995, how old would she have been in 2010?
If she had been born in 1995, she would have been 15 years old in 2010.
3. Kate went to the theatre yesterday. Could you have gone with her if she had asked you?
If she had asked me I could definitely have gone with her because I had no plants yesterday.
4. If you had had a slight toothache yesterday, would you have come to university?
If I had had a slight toothache yesterday, I would probably have come to university anyway.
5. If you had been late for the lesson, would you have apologized to the teacher?
If I had been late for the lesson, I would absolutely have apologized to the teacher.
6. Could you have lent your friend $100 yesterday if he had needed the money?
I wouldn't have been able to lend my friend $100 yesterday if he had needed the money because I don't have that kind of money.
7. Would you have been late this morning if you had woken up at half past eight?
I would have been late this morning if I had woken up at half past eight.
8. Could you have answered these questions if you had missed the last three classes?
I couldn't have answered these questions if I had missed the last three classes.