61, It is believed that Ha Long is a picturesque feature of Vietnam.

62, He suggests that we should go to Hue to visit the Citadel.

63, It’s worth reducing the smoke and exhaust to prevent global warming.

64, The main road to the city centre has recently been widened by them.

65, The boys prefer outdoor activities to indoor ones.

66, I wish all people were aware of the importance of preserving our culture.

67, My aunt asked me if my school had access to clean piped water.

68, We used to read and  write letters for the villagers.

69, I spent 2 hours finishing this report.

70, In spite of my sister’s tiredness, she tried to help me with the housework.