There was so much noise in the classroom that the monitor couldn’t make himself __________.

A、hear

B、hearing

C、to hear

D、heard
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