I.
1. Yesterday.
2. It is on an island in the middle of West Lake and not far from the centre of Ha Noi.
3. It is more beautiful than he expected.
4. His friends and he learnt more about the history of Hanoi after the visit.
II.
1. He lives in the countryside with his family.
2. There, are four people in his family.
3. There is a yard with a lot of flowers in front of the house.
4. There are some popular vegetables such as cabbages, carrots, tomatoes, potatoes etc.
5. Yes, he does.