We wish to call your attention to the ( ) in the L/C, since there is no possibility of L/C extension.
A. variety
B.validity
C.possibility
D.probability
出自:国家开放大学英语语法

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