How on earth did all these shoes end up in the children's bedroom?

How to say “How on earth did all these shoes end up in the children's bedroom?” in Japanese

In Japanese

いつの間(ま)にこんなに靴(くつ)が子(こ)ども部屋(べや)に集(あつ)まったの？

Itsu no ma ni konna ni kutsu ga kodomo beya ni atsumatta no?

How on earth did all these shoes end up in the children's bedroom? in other languages