2. People have reported that Thien Duong is the longest cave in Viet Nam.
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3. People believe the Perfume Pagoda was built during the reign of Le Thanh Tong in the 15th century.
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4. People say Ha Long Bay is one of the most extraordinary natural wonders you will ever see.
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5. People hope many defensive measures will be taken to protect and preserve our man-made wonders.
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6. People believed that the missing boy was wearing a white T-shirt.
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7. People know that Ha Long Bay was recognised as a World Heritage Site by UNESCO in 1994.
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8. People believe that the best time to visit the complex of Hue Monuments is in April.
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2. People have reported that Thien Duong is the longest cave in Viet Nam.
-> ......It has been that Thien Duong is the longest cave in Viet Nam. ..................................................................................................................................
3. People believe the Perfume Pagoda was built during the reign of Le Thanh Tong in the 15th century.
-> ................It is believed the Perfume Pagoda was built during the reign of Le Thanh Tong in the 15th century. ........................................................................................................................
4. People say Ha Long Bay is one of the most extraordinary natural wonders you will ever see.
-> ...It is said that Ha Long Bay is one of the most extraordinary natural wonders you will ever see. .....................................................................................................................................
5. People hope many defensive measures will be taken to protect and preserve our man-made wonders.
-> It is hoped many defensive measures will be taken to protect and preserve our man-made wonders. ........................................................................................................................................
6. People believed that the missing boy was wearing a white T-shirt.
-> ............It was believed that the missing boy was wearing a white T-shirt. ............................................................................................................................
7. People know that Ha Long Bay was recognised as a World Heritage Site by UNESCO in 1994.
-> ..........It is known that Ha Long Bay was recognised as a World Heritage Site by UNESCO in 1994. ..............................................................................................................................
8. People believe that the best time to visit the complex of Hue Monuments is in April.
-> ...It is believed that the best time to visit the complex of Hue Monuments is in April. .....................................................................................................................................