问题描述：
(D.)___when you cross the road.A.Do care B.Care C.To be care D.Do be carefull
(D.)___when you cross the road.
A.Do care
B.Care
C.To be care
D.Do be carefull
(D.)___when you cross the road.
A.Do care
B.Care
C.To be care
D.Do be carefull
问题解答：
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