18. The dying man is _____ the help of the doctor.
--- Is Mr. Smith in the office? --- Yes,_____ he is in charge of the office,he must be there.
He moved to Germany in _____, when he was in _____.
______ the day went on, the weather got worse.
---- Which city will be host city for the next Olympic Games? ---- London.
He tried to deal with the ever-increasing burden of his work,but finally _____ and had to take a complete rest.