Dear Tom,
It's my glad to write to you.i'm ** years old. i'm a pretty girl and i like ***（兴趣爱好,如listening music, playing volleyball, reading）. my family has four members, my parents, my brother and me. i'm a student from grade**, my school is ****. i have a dream to be a ***(理想,如policewoman, teacher, doctor, driver, nurse). what about you?
look forward to your letter.（i hope to receive your letter）
yours,(靠右写)
mary(靠右写)