The serious teacher became a(n) ____ of fear to all the students in the class.

A. material B. view C. object D. order
出自:英语期末考试答案

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