Sure! Here are the answers to the questions based on the email:

1. **Where is Nam staying now?**
- Nam is staying in a small hotel near a shopping area in District 10.

2. **Why is it very noisy around his hotel?**
- It is noisy because there are some big shops at the end of the street and there's a lot of traffic day and night.

3. **What are the streets in his neighbourhood like?**
- The streets in his neighbourhood are busy with shops and traffic.

4. **Is there a park in his neighbourhood?**
- No, there isn’t a park in his neighbourhood.

5. **What is the air in his neighbourhood like?**
- The air in his neighbourhood is not fresh due to the traffic, while in his hometown it is fresher because there isn’t so much traffic.