Thinking that her daughter was doing 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： 考查形容词作状语。句意：考虑到她的女儿正在做作业，母亲迅速轻轻的离开了房间。所以选B。