The writer is excited that Mary will be staying with their family in one month. They explain their family's rules, which include helping with housework, studying seriously as it is important for the future, doing morning exercise every day to stay healthy, keeping one's room tidy, respecting elders, and not swearing or staying out late. Family rules help family members understand each other and improve their behaviors.

1. Dear Mary,
Hi! How are you? I'm overjoyed that you're going to stay with my family in one month.
In the previous letter, you asked me about our family rules and now, I will tell you about
them.
Each family has its own rules and mine has few. Here are some rules of my family. My
parents want me to (agree/help around/play) with the housework and other home duties
as they think that all family members should share housework. What's more, they tell me
to take my studies seriously. They said that learning is very important and it has great
influence on my future. Other rules in my family are that I should (do morning exercise/do
home work/ go to school) every day to stay fit and healthy and always (make my room
messy/keep my room tidy/do the laundry). Apart from these, I am not allowed to
(study/go out/go to bed) late in the evening because this is dangerous. Last but not least,
they ask me to (object/disapprove/respect) the elderly and forbid me to
(sing/wear/swear). I think that family rules play an integral role in helping family members
understand one another and improve their own behaviors.
If you have any questions, please let me know. I hope you will enjoy your time in Vietnam.
I'm looking forward to meeting you.