Answer:
A letter giving her information about the school and advise her how to behave well while in the school is written below in details.
Step-by-step explanation:
Dear Clare,
I hope you are great in your latest boarding school and you have made new friends. I miss you and all the chats we had throughout our school days.
However, I must dispense with you that my mature sister has grown my best friend since you went. She always hears me and gives me attention and care. Though she has constantly been very tender, now she runs out of the habit to take guardianship of me.
She is my favorite and I look up to her for all my queries. She is very patient and does not punish me if I make any errors. She treats me with my study and gives me companionship. I feel blessed to have her as my mature sister.
We have enhanced our best friends. I share the finest details with her. She recognizes all my mysteries and now she is also conscious of all the games that both of us have performed to date. She made me realize that a few of the games could have had unfavorable effects and I should not replicate them.
I will look ahead to hearing from you soon. Wishing you all the best in all your endeavors.
Your Lovingly,
ABC