59．A．it               B．that              C．this                 D．its

 58．A．I’m not hungry                 B．I’m full now

     C．I’ve had enough                  D．It was delicious

 57．A．One           B．The other         C．Another          D．Other

 56．A．something    B．everything       C．anything        D．nothing

 55．A between         B．from           C．to                    D．as

 54．A eat                B．drink           C．talk                 D．behave

 53．A．is               B．does             C．was               D．used to

 52．A．fast           B．quick           C．good               D．many

 51．A．feeling        B．to feel          C．felt                 D．feel

50．A．school        B．home           C．house              D．family