John ___________ on his friend when he went to Guangzhou last month.
– 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.
A foreign friend is coming to visit our new house this evening. My mother will offer him to eat.