He is familiar _____ this place, because he used to live in the apartment.
—Sorry, do you mind if I smoke here?—Yes, _______.
It’s the first time that he has been to Australia, _______ ?
Peter’s jacket looked just the same as Jack’s, but it cost _____ his.
Children need friends ______ their own age to play with.
My parents have promised to come to see me before I _______ for Africa.