1. Do you know Halong Bay?
2. Have you ever been to Halong Bay?
3. How long does it take from Hanoi to Halong bay?
4. What kind of food on boat in Halong Bay?
5. When is the best time to visit Halong ?
6. Which part of the day do we go squid fishing?
7. Can you explore Halong Bay by boat?
8. How many islands does Halong Bay have?
9. What activity can you try in Halong Bay?
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Sinh Học lớp 12
