Sam: Good afternoon, Mum.
Mum: Good afternoon, Sam.
Sam:
Mum: He's in the kitchen.
Sam:
Mum: No, he isn't.
Sam: Where's my sister? Is she in the kitchen, too?
Mum: No, she isn't.
Sam:
Mum: She's reading a book.
A. Is he cooking dinner?
B. He is washing the dishes.
C. Where is my Dad?
D. She is in her bedroom.
E. What is she doing?