Answer:

Am:

I am going to make sure that all my appliances and equipments, such as stove, is turned off before I leave or go to bed.

Is:

Making sure that your sprinklers is working can prevent fire from happening.

Are:

Checking electrical wirings regularly, and other stuff that involves power are the best ways to protect your house from fire.

Was:

If the candles or other flammable items was turned off, then the chances of causing fire to your house will decrease.

We're:

If I were you, I would always make sure that my LPG tank is completely sealed.

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