This Old Man — Lois Ruby

A spunky young girl forms an unlikely friendship with a dying Chinese man while living in a group home

For Greta, having light and carefree Hackey hanging around her mom is a lot more fun than having an ordinary dad. But Hackey isn't her father -- he's more like a pimp, and no matter how friendly he is, he still treats Greta's mom like dirt. When the situation at home goes from bad to worse, Greta is moved into a home for at-risk children where she meets some of the most interesting girls she has ever known -- and a shy young boy named Wing.
 
Greta's riding a San Francisco cable car when she notices Wing carrying a huge basket of delicious-smelling food. It's for his grandfather, Old Man, who is dying in the Chinese hospital. Although they don't speak the same language, Greta and Old Man will become fast friends -- two survivors, who refuse to give up on life.