It is necessary that every college graduate _______ this exam to apply for graduate admissions.
·took
·takes
·take
·is taking
出自:佳木斯大学语言治疗学

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