He tries _______ English. And he finishes______ homework every day.

A．to learn, to do

B．learning, doing

C．to learn, doing

D．learning, to do

“动中有静，静中有动”说明了( )

A．物质和运动的统一

B．运动和静止的统一

C．有限和无限的统一

D．唯物论和辩证法的统一