His name is John Brown. You can call him _____.
Please give this note to Lucy __________ you see her.
He invited some classmates to come to his party, but _________ came.
Stop smoking, _________ you'll get better soon.
-Do you know if he _________ to play football with us?-I think he will come if he _________ free tomorrow.
The child doesn't need any help. He is old enough to _________ himself.