a reply, he decided to write again.

A、Not receiving

B、Receiving not

C、Not having received

D、Having not received
出自:大学英语B2252

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