---The students sitting at the back can’t see the blackboard________. ---Why not_________ them move a little forward?
—____ are you? —I’m twelve.
—We need a new leader for our Helping Hands Club,but I don’t know_______. —Why not Mary? She is always willing to help others.
It’s nice _____ you to ______ so much time showing me around your school.
The art exhibition is really worth _______,and you’re sure to learn lot from it.
He often says, “I ____ one million smiles in my heart _____ one billion dollars in my pocket.”