One possible version

Dear Cindy,

     Thank you for sending me your photos. You wonder who the person I thank most is. Now let me tell

you.

     My mother is the person who I should thank most. She is an English teacher in a middle school. She

is of medium height, and wears a pair of glasses. She likes reading and playing ping-pong. She is a good

teacher and she is also a good mother. She is very busy every day. But she tries to do what she can to

make me study at school. When I am ill, she often takes me to the hospital and stays with me all the time.

But sometimes when she falls ill, she never goes to see a doctor.

     For my mother, I'll do my best to be a good child. I'll love her forever.

     Best wishes

                                                                                                                                          Dale