answer: #Person1# comes home early to find his mother's cooking earlier than usual. His mother tells him it's for Grandma Wang who is sick and alone. #Person1#'ll also help.
documents: #Person1#: Mom, I'm starving. 
  #Person2#: Here are some biscuits. Why are you back so early today? 
  #Person1#: My teacher had a sudden stomachache, so the class was cut shot. You? 
  #Person2#: Me what? 
  #Person1#: You are cooking at least two hours earlier than the usual. 
  #Person2#: It's not for us. 
  #Person1#: Then it's for Dad, isn't it? It's so unfair! 
  #Person2#: Don't be a smarty-pants. It's for Grandma Wang. 
  #Person1#: What was that again? 
  #Person2#: It's for Grandma Wang. She is sick and her only daughter went abroad weeks ago. So she needs our help. 
  #Person1#: I'm sorry, I didn't know that. But I wanna help. 
  #Person2#: Umm, let me think for a moment. We can meet her together after I finish cooking. 
  #Person1#: I'll get knee to knee with her. 
  #Person2#: Good boy. I can only imagine how happy she will be to see you.