All teachers received warmest congratulations on Teachers’ Day. They felt ________.

A．an honour that they were teachers

B．that they were teachers an honour

C．it an honour when they were teachers

D．it an honour that they were teachers

列车工作人员发现或接到反映车辆下部有拖、拉、击打声、上下振动声、连续摩擦声等异音通知时，应立即通知司机，立即采取（）方式停车。