Though Mr Thompson had turned the lights off before he went to bed,they were on in the morning

问题描述:

Though Mr Thompson had turned the lights off before he went to bed,they were on in the morning
但早晨灯却都亮着they were on in the morning 为什么这么说阿?好别扭

be on:1.在进行,在上演,(灯)亮着 2.演出 3.上演,上映
they were on=the lights were on即那些灯是亮着的.