--Is the man over there Mr. Brown?-- It _____be him. He is much shorter.A. must B. can`t C. needn`t
My mother will make some food for us if we _______ a party at home.
Please remember _______ the computers down when you leave the office.
The story _______ about fifty years ago.
He arrived____ London ____ a cold winter night.
When I walked past her room, I heard her _______ an English song.