— David, is this your sister’s bike?— No, it’s not ______. It’s my brother’s.
-Don't stand_______ me. I can't see the blackboard. -I'm sorry.
My grandfather usually_______ his glasses before he does some reading.
-Who_______ dog in our class ? -Many students_______.
Mary lives_______ her family in Nanjing now.
It's time_______ supper now.