1. It is a pity your friend isn't at this party.
→ I wish your friend were at this party
2. It's a pity she is absent from the party.
→She wishes she weren't absent from the party
3. I can’t remember the answers to these questions.
→ I wish I remembered the answers to these questions
4. I am not at my sister's wedding now.
→ I wish I were at my sister's wedding
5. I don't know German, French and Spanish.
→ I wish I knew German, French and Spanish
6. It is a pity I don't know where she lives.
→ I wish I knew where she lives
7. We can't understand all the lessons.
→ We wish we could understand all the lessons
8. Today is not my birthday.
→ I wish today were my birthday
9. She can't swim well.
→ She wishes she could swim well
10. I’m so sorry I can’t play the piano.
-> I wish I could play the piano
11. It’s a pity. We can’t speak English well.
→ We wish we could speak English well
12. It's a pity. I can't play the piano.
-> I wish I could play the piano
13. I am sorry that I can't come to your party.
-> I wish I could come to your party
14. The people were very nice. We met them on the train to Ho Chi Minh city. (who)
→ The people who we met on the train to Ho Chi Minh city were very nice
15. I saw the man. He closed the school-gate. (who)
→ I saw the man who closed the school-gate
16. The boy is from China. He sits next to me. ( who)
→ The boy who sits next to me is from China
17. Do you know the boy? He took my pen. (who)
→ Do you know the boy who took my pen ?
18. The man is my new boss. He is talking to the lady over there.
→ The man who is talking to the lady over there is my new boss
19. The girl decided to travel by train. She is afraid of airplanes.
→ The girl who is afraid of airplanes decided to travel by train
20. The man was very kind. I talked to him yesterday.
→ The man to whom I talked yesterday was very kind