I haven’t heard her for a long time since the last letter but I did hear her through my fr

问题补充：

I haven’t heard her for a long time since the last letter but I did hear her through my friend.

A. from; about

B. of; from

C. about; of

D. from; from

答案：

(答案→)A. from; about

B. of; from

C. about; of

D. from; from

解析：hear from sb 收到某人的来信; hear of/ about sb听说；得知某人的消息。