To answer your questions, I'd need more context about the schools mentioned. However, I can help you understand how to approach each question:

1. **Which school is a boarding school?**
- Look for information that indicates one of the schools provides accommodations for students.

2. **Where is An Son School?**
- Check for geographical information related to An Son School in the text.

3. **Is there a school garden in An Son School?**
- Look for any details mentioning a school garden in An Son School.

4. **What do Dream School students do in the afternoon?**
- Find information on the afternoon activities for students at Dream School.

If you can provide the relevant passage or information about these schools, I’d be glad to help you answer the questions specifically!