出发前，我们对潜水设备进行了最终检查。

We gave our diving equipment a final ___check before setting off.

机场的安全检查变得非常严格。

Security ___checks have become really strict at the airport.

我必须给我的狗做一些医疗检查，因为它可能生病了。

I have to do some medical ___checks on my dog because it might be sick.