We had a(n) _____ with him about this problem last night.

A、explanation   

B、impression  

C、exhibition

D、discussion
出自:大学英语A252

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块