用所给词的适当形式填空（共10个空，每空1分，共10分）
What are __________ (this) in English?
--Betty, can you ________(play) the piano? --Sorry, I can’t.
My parents are _________ (worker).
Look! This is a photo of ________(we) classroom.
Her grandparents ___________( be not) at home now.
Helen is _________ (Tony) aunt.
I like _________(swim) in summer.
Look at those ______________(people).They are reading.
Tony _________(have) got two sisters.
_________(be) your mother at home?