Question 2: Vietnamese students do not usually wear school uniform.

Thanks for your letter. It's very interesting to know about schools in the USA. I think schools in Viet Nam are a little different. Vietnamese students usually wear uniform. Classes start at 7.00 each morning and end at 11.15 in the afternoon. Students have a 30-minute break after three periods. At break time, many students play games. Some go to the canteen and buy something to eat or drink. Others talk together. Our school year lasts for 9 months, from September to May. Then we have a 3-month summer vacation. We feel too much long to come back to school to meet friends. I hope to know more about schools in your country.
Your friend,
Hoa