1. The man is learning English.
- It is English that the man is learning.
2. The woman gave him the book.
- It was the book that the woman gave him.
3. She sent her friend the postcard.
- It was the postcard that she sent her friend.
4. Hoa borrowed the book from Long.
- It was the book that Hoa borrowed from Long.
5. The little boy grected his grandfather in a strange language.
- It was his grandfather who/ whom the little boy greeted in a stranhe language.
6. The pedestrian asked the policeman a lot of questions.
- It was the policeman who/ whom the pedestrian asked a lot of questions.
7. The dog barked at the stranger.
- It was the stranger who/whom the dog barked at.