问题
选择题
I’m writing this letter ________ my mother, who wants to thank you for your nice gift.
A．in order to
B．in behalf of
C．on behalf of
D．in terms of
答案
答案：C
词义辨析题。A. in order to 为了 C. on behalf of 代表 D. in terms of 从…角度 句意：我代表妈妈给你写信，妈妈感谢你的礼物。 根据语境选C