---What are________ teachers doing?---They are having a meeting.
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.
A foreign friend is coming to visit our new house this evening. My mother will offer him to eat.
You shouldn’t go to meet your “Internet Friend”.
My father went to work without his car.