1. Are you and your friends visiting an aquarium?
No, we aren't. We are at the railway station.
2. Are you wearing a blue jumper?
Yes, I am wearing a blue jumper.
3. Is your friend playing the guitar right now?
Yes, my friend is playing the guitar right now.
4. Is your mum cooking at the moment?
No, my mum is watching TV programm at the moment.