她突然发火，开始大喊大叫。

She ___lost ___her ___cool and started shouting.

即使在极端压力下，他也从未失去冷静。

Even under extreme pressure, he never ___loses ___his ___cool.

这周我好几次都差点对他发脾气。

I've almost ___lost ___my ___cool with him several times this week.