They first went ________.



A)
through customs
B)
to the check-in desk
C)
through the passport control
出自:上海开放大学-大学英语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