He started his speech using a microphone.

He spent time preparing for the speech.

I heat up the meal using a microwave.

I will work using this laptop.

I decided to start a new project.

He came to Japan for the first time.

Since I started studying Japanese, I have been able to understand more about Japanese culture.

He started playing the piano.

The microchip is an important part of the computer.

He is my best friend.