In no case ______ allowed to go on.
A. should such a thing be
B. should not such a thing be
C. such a thing should not be
D. such a thing should be
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