I wrote "Be careful, the bathtub water is hot," and was marked incorrect.
Maybe they're saving that for something like "E akahele, wela ka wai kapu ʻauʻau"?
I think you are correct.
They had "ma ke kapu" so we would need to indicate location, no?
Hard to remember that E akahele means "be careful," and not "take care." I should make flash cards maybe.