Complete the dialogue. WB 6/21

Sara: This is for you, Robbie.
Robbie: Thanks, Sara! Is it a ?
Sara: No, it isn't. it's a cake.
Robbie: Great! Is it a strawberry and ice cream cake?
Sara: !
Robbie: My favourite!
Sara: And this is your present.
Robbie: Wow! It's a CD - the Black Eyed Peas! Thanks! But ?
Sara: Because it's your birthday,
Robbie: Thanks, but ... er ... my is on Friday.