IV
26. Road users should obey traffic rules strictly. - Traffic rules should be obeyed strictly by road users
27. Is Ho Chi Minh the largest city in population in Viet Nam? Ho Chi Minh is the largest city population in Viet Nam,isn't it?
28. What is the distance between Ha Tinh and Ha Noi city? > How far is it from HT to HN city?
29. I often walked to school when I was a student. I used to walk to school when I was a student.
30. Although they are not very strong, they still love playing sports. → In spite of the fact that they are not very strong, they still love playing sports.
V
1 => Because yesterday was Sunday
2 Her father
3 Her mother tidied their house then cook a good lunch
4 Yes,he did
5 No, they weren't
