Don't throw ______ the sponge yet! You may still have a chance to win!

A．living on one's knees
B．to live on one's knees
C．lived on one's knees
D．live on one's knees

A．are lucky since they can have a whole night's sleep
B．find fun in tucking them into bed at night
C．find more time to play and joke with them
D．derive happiness from raising their children