Dưới đây là các câu đã được viết lại bằng cách sử dụng mệnh đề quan hệ:

1. The car, which was bought by my brother, is very expensive.
2. The movie that we watched last night was interesting.
3. The teacher who teaches us English is very friendly.
4. The cake that my mother baked yesterday is delicious.
5. The man who helped me fix the bike is my uncle.