Ответ:
1. My brother doesn't have a very long holiday.
I wish he did. I wish he had a very long holiday.
2. I can't play the piano.
I wish I could. I wish I could play the piano.
3. My tooth is aching.
I wish it wasn’t. I wish it wasn’t aching.
4. I sometimes make careless mistakes.
I wish I didn’t. I wish I didn’t sometimes make careless mistakes.
5. He's not coming to see me today.
I wish he was. I wish he was coming to see me today.
6. I can't swim well.
I wish I could. I wish I could swim well.
7. I don't know how to answer this question.
I wish I did. I wish I knew how to answer this question.
8. He always drives too fast.
I wish he didn’t. I wish he didn’t always drive too fast.
9. I don't speak English fluently.
I wish I did. I wish I spoke English fluently.
10. I can't go to the cinema this evening.
I wish I could. I wish I could go to the cinema this evening.
11. The teacher gives us a lot of homework.
I wish he didn’t. I wish he didn’t give us a lot of homework.
12. My father doesn't come home from work early.
I wish he did. I wish he came home from work early.
13. I live a long way from the Institute.
I wish I didn’t. I wish I didn’t live a long way from the Institute.
14. Our television set is broken.
I wish it wasn’t. I wish it wasn’t broken.
15. I can't sell my old bicycle.
I wish I could. I wish I could sell my old bicycle.