"Hi,David!"
"Hi,John!"
"what are you doing ,David?"
"I'm drawing."
"Do you see Mary today?"
"Oh,no.I saw her yesterday."
"what are you going to do this weeked,David?"
"I will go to see my grandpa with my mother.what about you?"
"I will go to the park of People with my family."
"Oh,that's great!Have fun!"