My brother was against my suggestion while my sister was it.
A. in honor of
B. in search of
C. in favor of
D. in charge of
网友回答
A. in honor of
B. in search of
(答案→)C. in favor of
D. in charge of
解析：短语辨析，A. 向……致敬 B. 寻找；搜寻 C. 有利于；支持；赞同 D. 负责；主管。根据题意，我的哥哥反对我的建议，然而我的姐姐支持。故选C。