He had put the hat __________ and taken it off again three times.
                    举一反三
- He had put the hat __________ and taken it off again three times. A: by B: up C: on D: aside
 - He had put the hat_______ and taken it off again thee times. A: off B: on C: away D: into
 - The plane had taken off before he arrived at the airport.
 - He put off _______ (make)a decision till he had more information.
 - When they had finished reading, the children were told to all the picture books they had taken out. A: put up B: put off C: put away D: put out
 
