1.Her father objected having boy friend. He is very strict.
→ Her father, who objected having boy fiend, is very strict.
2. Jack is a good farmer.l bought his land.
→ Jack, whose land I bought, is a good farmer.
3. Jack composed thể song "Song Gio" the song is very famous.
→ Jack composed the song "Song Gio", which is very famous.