[单选题,5分] While ____ in the room, we were all very excite
A.waited
B.waiting
C.towait
D.wait
出自:安阳师范学院—大学英语

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