3.

1, This citadel is thought to have been built in the 18^th century.

2, This is believed to be the biggest sculpture in the area.

3, It is agreed that we should control the number of visitors to this fortress.

4, The government is expected to be recognize the importance of national parks.

5, 500 people were reported to have visited the arts museum last month.

1. READING

1.

1, established

2, situated

3, has

4, to

5, recognized

6, different

7, variety

8, from

9, including

10, attraction

2.

1, It is about 9km in length, 200m in width and 150m in height.

2, The cave was realized to possibly be the largest cave in the world in 2009.

3, It was Malaysia’s Deer Cave.

4, Occasional collapses in the roof have allowed underground jungle ecosystems to form.

5, Rare cave pearls, ancient fossils, and towering stalactites from around a river running through the caves.

III

1.

1, My mother suggested going to Hue this summer holiday.

2, He suggested booking two return tickets because it will be cheaper.

3, She suggested joining efforts to protect the beauty of this citadel.

4, Lena suggested going to Bach Ma National Park tomorrow.

5, I suggested designing a poster to advertise the attraction of this old village.