Learn what "how did this happen" means, when people say it, and how to use it naturally in English.

This is a simple way to ask for the cause of a surprising or bad event.
From Undercovered Heart, Episode 36
Someone reacts to a bad situation by asking how it could have happened.
Use this when you want to ask what caused a problem or disaster. It is common in both casual and serious situations.
Scenes unlock real expressions as you watch
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