27. Collecting coins from foreign countries is George’s interest.
`=>` George is interested in collecting coins from foreign countries
28. I often went to the cinema at weekends.
`=>` I used to go to the cinema at weekends.
29. Does Phong’s school have forty classrooms?
`=>` Are there forty classrooms in Phong's school ?
30. “Please do not litter as you are walking along the coast”, the guard said to us.
`=>` The guard told us not to litter as we were walking along the coast.
31. You can’t register for a course abroad if you don’t have a passport.
`=>` Unless you have a passport, you can’t register for a course abroad.
32. “Why don’t we visit the Royal Citadel first?” Quang said.
`=>` Quang suggested that we should visit the Royal Citadel first.