In which instances do you have to approach a pedestrian crossing with particular care?

You answered correctly. You must always approach a pedestrian crossing with extra caution in all the situations mentioned: when pedestrians want to cross, when your view is limited, or when another vehicle is already waiting at the crossing. German road rules require drivers to slow down, be ready to stop, and pay special attention in these situations because the likelihood of pedestrians crossing is high or visibility is reduced. This ensures the safety of pedestrians and prevents accidents. Remember, at a pedestrian crossing, giving priority and being particularly careful is always necessary when these conditions are present.