What is it?
It's a computer / desktop computer / PC .
What are they doing ?
They're taking a selfie.
What is it?
It's a mobile phone.
What is it?
It's a screen / monitor.
What are you doing ?
I'm sending an email.
What is it?
It's a laptop.
What is it?
It's a keyboard.
What is it?
It's a tablet.
What are they ?
They'are speakers.
What's he doing ?
He's surfing the Internet.
What is it?
It's a printer.
What's she doing ?
She's taking a photo.
What is it?
It's a camera.
What are they ?
They'are headphones.
What are you doing ?
I'm downloading music / a song.
What's he doing ?
He's chatting online.
What's she doing ?
She's talking on the phone.
What is it?
It's a TV.
What's he doing ?
He's texting his friend.