当我看到火灾时，我惊慌失措了。

When I saw the fire, I ___lost ___my ___head.

她在危险情况下从不惊慌失措，并且总是知道该做什么。

She never ___loses ___her ___head in dangerous situations and always knows what to do.

经理告诫我们，在紧张的谈判期间不要失去冷静。

The manager warned us not to ___lose ___our ___heads during the intense negotiations.