Be quick, __________ you’ll be late for school.
– Could you tell me the way to the bookstore? –__________. It’s right over there, on the left.
– Do you know where_________? – Yes. It’s next to the post office.
– How long has Jack been away? – ___________.
There’s _______snow and it’s cold this winter.
– Listen ! Is Professor Johnson giving a report in the hall? – No, it _______ be him. He has gone to America.