—Who______ it be that is knocking at the door?—It ______ be Father, but I’m not sure.
He isn't such a man ______he used to be.
It there anyone in your class ______family is in the country?
Do you know the man _______?
Great changes have taken place in that school. It is no longer _______ it was 20 years ago, _______ it was so poorly equipped.
The way he did it was different ________ we were used to.