What are They Doing Now?

Father: Dan, Mary, Kate, Bill, where are you?

Mary: Here I am, Father.

Father: And where is Kate? What is she doing now?

Mary: She is eating soup.

Father: And what is Dan doing?

Mary: He is eating potatoes.

Father: What is Bill doing?

Mary: He is eating ice-cream.

Father: And Spot?

Mary: Eating your book.

Father: My book?!