Thinking that her daughter was doing her homework ,the mother left the room, .
A. quickly and gentle
B. quick and gentle
C. quickly and gently
D. quick and gently
网友回答
A. quickly and gentle
(答案→)B. quick and gentle
C. quickly and gently
D. quick and gently
解析：句意：想到她的女儿在做作业，妈妈轻柔的离开了房间，这里因为有逗号，所以用形容词做状语表示妈妈走出房间的状态，所以选B。