YOU SAID:

Oh, hey! what the heck just happened?

INTO JAPANESE

ああ、ちょっと！ちょうどちょうど何が起こった？

BACK INTO ENGLISH

Oh, hey! Just what just happened?

INTO JAPANESE

ああ、ちょっと！ちょうど何が起こったのですか？

BACK INTO ENGLISH

Oh, hey! Just what happened?

INTO JAPANESE

ああ、ちょっと！ちょうど何が起こったの？

BACK INTO ENGLISH

Oh, hey! Just what happened?