He has a self-serving mindset, using everything for his own benefit.

Please check the answering machine.

Where is my calculator?

Can this device withstand high voltage?

We created a television advertisement for the promotion of the new product.

We have started a campaign to advertise our new product.

Yesterday, there was a power outage at my house.

Yesterday, our house suddenly lost power.

There is a new radio clock in my room.

Last night, we suddenly lost power and all electrical appliances became unusable.