As you know，it is my duty to my younger sisters from being hurt when they are in danger.
A. prevent
B. save
C. stop
D. protect
网友回答
A. prevent
B. save
C. stop
(答案→)D. protect
解析：考查动词词义辨析。句意：你知道，当我的妹妹们处于危险时保护她们是我的责任。A．prevent阻止 B．save 救，节约 C．stop 阻止 D．protect保护，根据句意所以D正确。