5.The boy____a cigarette in the bathroom by his mother.
A.caught smoking
B.was caught smoking
C. caught to smoke
D. was caught to smoke
出自:大学英语1

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