you___ stop when the traffic light is red.A.can B.may C.must D.might

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you___ stop when the traffic light is red.A.can B.may C.must D.might

you___ stop when the traffic light is red.A.can B.may C.must D.might
you___ stop when the traffic light is red.
A.can B.may C.must D.might

you___ stop when the traffic light is red.A.can B.may C.must D.might
应该选C must. 当红灯亮了的时候,你(必须)停下来.这是一种强制性的动作,没有选择的余地,而A、B选项都暗示了一种可选择性,所以不能选.