26. two ⇒ twice

27. My son never goes to the dentist so his teeth are bad.

28. They will visit  to Yen Tu Pagoda on the way to Ha Noi next week

29. I'm doing my homework at the moment so that I can not go with you.

30. John doesn't have blue eyes but the colour of his eyes are black.

31. Mary always cycles to school and she never goes to school late.

32. Peter is from Great Britain and he speaks English.

33. There is too much noise and many vehicles in the city.

34.  It's too far for us to go to Hai Phong by bike.

35.  When you don't need the light, you should switch it off.

36. Mark usually watches TV or listens to music after school.

                Chúc bạn học tốt                 

27. My son never goes to the dentist so his teeth are bad

28. They will visit  to Yen Tu Pagoda on the way to Ha Noi next week

29. I'm doing my homework at the moment so that I can not go with you

30. John doesn't have blue eyes but the colour of his eyes are black.

31. Mary always cycles to school and she never goes to school late.

32. Peter is from Great Britain and he speaks English.

33. There is too much noise and many vehicles in the city.

34.  It's too far for us to go to Hai Phong by bike.

35.  When you don't need the light, you should switch it off.

36. Mark usually watches TV or listens to music after school.