Charles regretted _______ the TV set last year. The price has now come down.

A、buying
B、to buy
C、of
出自:国家开放大学网络实用技术基础

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