It is illegal for a public official to ask people for money favors to them.
A. in preference to
B. in place of
C. in agreement with
D. in exchange for
网友回答
A. in preference to
B. in place of
C. in agreement with
(答案→)D. in exchange for
解析：介词词组辨析题。A. in preference to 偏好B. in place of 替代 C. in agreement with 一致 D. in exchange for 交换 句意：官员以权谋私是非法的。根据语境选D