He uses his phone to make calls.

She is using her phone to take pictures.

I am using a computer to write this sentence.

The US of A is known for its diverse culture and rich history.

The computer is currently in use.

The US dollar is the symbol of the United States.

Let's go to the park.

There are many usings of this technology.

The US is a country located in North America.

The usefulnesses of this tool are undeniable.