Sam : Hello! Who's that?
Tom:It is Tom.
Sam: Is your mother at home?
Tom : No, she isn't. She always(总是) goes shopping with my grandma on Saturdays.
Sam: Does your father go to work on Saturdays?
Tom: Yes, he does.
Sam:Does Jack go shopping?
Tom:No, he doesn't. He's only two years old. He is at home with me.
Sam:Ha, ha...
