It is a ball.____(it)are balls.
There is a ball under the desk.对a ball 提问 These are balls un
There is a ball on it.能否改为It's a ball on it.
____ ____is the ball?it is in the box.
Look,there is a cat.____(it)eyes are big.
is还是are a lot of balls
A:Whose ball is this?B:It is__
A lion?where it is from?it's from australia.are you ____ of
a isn't ball it
Everybody is ready ,____?A is not B is it C are not they D i
--It's a ball pen,( --It's a pencil.A.what is this B.and wha
the boys ____ a football ,it is new A there are B there is C
english is an ____ subject are you ____ in it?