31. Where do you see this sign?
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A. At a playground entrance
B. On a school bus
C. At a 'pedestrians only' area
D. Near a school crossing
32. What does the sign mean?
A. Please swing when you drive on this road.
B. Please take care as the road is dark.
C. Please take care as the road is slippery.
D. Please swing if there is a car in front of you.