_______he is ill, _________he goes to work.
— Are the two boys in this photo_______ volleyball?— No, they aren’t. They are_______ tennis.
—Are these your English books?— Yes, ________.
— is your brother?— A doctor for the children.
—Are these your goldfish?— Yes, please give to .
一Would you like to buy an MP3 for your birthday?一______.