Sir,you should ______at the red light.But you did't.A.stop B.have stopped C.not have stopped D.have to wait小弟愚笨,请诸位高手再帮忙解释下各个选项,

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Sir,you should ______at the red light.But you did't.A.stop B.have stopped C.not have stopped D.have to wait小弟愚笨,请诸位高手再帮忙解释下各个选项,

Sir,you should ______at the red light.But you did't.A.stop B.have stopped C.not have stopped D.have to wait小弟愚笨,请诸位高手再帮忙解释下各个选项,
Sir,you should ______at the red light.But you did't.
A.stop B.have stopped C.not have stopped D.have to wait
小弟愚笨,请诸位高手再帮忙解释下各个选项,

Sir,you should ______at the red light.But you did't.A.stop B.have stopped C.not have stopped D.have to wait小弟愚笨,请诸位高手再帮忙解释下各个选项,
b ■should加完成式:should have done表示“本应该做某事,但事实上却没有做”;shouldn’t have done表示“本不该做某事,但事实上却做了”.如:
You should have got up earlier.你本应该早点起的.
You shouldn’t have told him about it.你本不该把这件事告诉他的.同理,应选B