We knew we were getting close to the park _______ we started seeing the tiger right next to the road.(本题4.0分)
A、 when
B、 before
C、 while
D、 until
出自:川北医学院英语2

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