_____ is your birthday?
WHEN is your birthday?
_____ are you doing? - I'm playing ball.
WHAT are you doing? - I'm playing ball
_____ are you wearing those clothes? - Because I like them.
WHY are you wearing those clothes? - Because I like them.
_____ is the baby sleeping? - Because it's sleepy.
WHY is the baby sleeping? - Because it's sleepy.
_____ is your school?
WHERE is your school?
_____ are you?
WHERE are you?
_____ is that? - It's a tree.
WHAT is that? - It's a tree.
_____ is the school secretary?
WHO is the school secretary?
_____ is New Year's Eve?
WHEN is New Year's Eve?
_____ is your teacher?
WHO is your teacher?