They...dogs.
isn't
are
aren't
is
The book ... red.
isn't
aren't
are
is
He...happy.
is
aren't
are
isn't
He ....happy today.
isn't
am not
is
aren't
The house...big.
am not
aren't
isn't
The dog ... next to the box.
aren't
isn't
are
is
They...cats.
aren't
isn't
are
is
It ... blue.
aren't
is
isn't
are
The bike...old.
aren't
am not
isn't
The dog ... on the table.
is
are
aren't
isn't
It ... red.
aren't
is
isn't
are
I ... a boy.
aren't
am
am not
are