1. tradition -> traditional
2. are -> bỏ
3. into -> to
4. by -> of
5. economical -> economic
6. help -> helps
7. are -> is
8. in -> to
9. because -> because of
10. not -> no
Bài 2:
1. My sister has worn her new ao dai only twice since she bought it
2. We didn't use to wear jeans when we studied at primary school
3. Liz wishes she were going to HN with her parents next Sunday
4. A lot of new styles of clothes are designed by his shop every week
5. Wearing uniforms encourages students to be proud of their school