―Must I report the situation of the new company to the manager now? ―No, you         . You are tired and you can do it after you have a good rest.

-- Look at that girl. Is it Susan?--No, it _______ be her. She has gone back to her home town .

Tom’s mother is busy _____ breakfast for Tom.

 You’d better ____ football in the street.

Don't blame such a small boy any more. Even the wisest___ make a mistake sometimes.