5. She doesn't join in the trip. -> I wish she joined in the trip.
6. I am not good at English. -> I wish I were good at English.
7. He studies badly. -> I wish he studied well.
8. He doesn't like playing sports. -> I wish he liked playing sports.
9. I don't have a computer. -> I wish I had a computer.
10. Today isn't a holiday. -> I wish today were a holiday.
11. I can't sing this song. -> I wish I could sing this song.
12. He is punished by his mother. -> I wish he weren't punished by his mother.
13. They won't come here again. -> I wish they would come here again.
14. He won't go swimming with me. -> I wish he would go swimming with me.
15. We don't understand them. -> We wish we understood them.
16. I will be late for school. -> I wish I wouldn't be late for school.
17. The bus is late today. -> I wish the bus weren't late today.
18. She doesn't like this place. -> I wish she liked this place.
19. These students talk too much in class. -> I wish these students didn't talk too much in class.