1. 补全对话

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?

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.