diary ＃3 Best friends

Please correct.
When I was nine , I had two best friends who were from Brazil. They came to Japan because their father was working there . It didn't take much time for me to meet, and start playing with them. We learned how to play the piano together. We were always together and had so much fun, but they returned back to Brazil a year later. Unfortunately, I don't know their address . It's a long distance  between Japan and Brazil . I sometimes still remember that they were my first best friends.I hope they are happy now.