The old man with his son_______the street carefully when the traffic light was red.A.were crossing B.crossed C.across

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The old man with his son_______the street carefully when the traffic light was red.A.were crossing B.crossed C.across

The old man with his son_______the street carefully when the traffic light was red.A.were crossing B.crossed C.across
The old man with his son_______the street carefully when the traffic light was red.
A.were crossing B.crossed C.across

The old man with his son_______the street carefully when the traffic light was red.A.were crossing B.crossed C.across
The old man with his son (A.were crossing) the street carefully when the traffic light was red.
当红灯亮时,那位老人正和他的儿子一起小心地过马路.
时间状语为when引导的过去时,主句为过去进行时态,表示过去某个特定时间正在发生的事情.


答:选A。(此题用的是过去进行时,标志词语:while或者when)
(不懂可追问,满意请采纳)谢谢!祝你学习进步!

选B,句子时态为一般过去时,符合的只有B

应该选 was crossing。
主语是the old man,这是单数,又因为when...表示时间点,用进行时态,所以用was crossing。这是过去进行时。