— Can you play the piano?
—Yes, I . I often practice it on weekends.
A:will
B:must
C:can
鱼所以能够在水中生活,有两个特点是至关重要的,一是能靠____ 来获取食物和防御敌害,二时能在水中____ .
下列说法中,正确的是( )