Peter is a / the student. He lives in a / the flat with two friends. A / the flat is small but he likes it.

Do you want a / the biscuit? A / The chocolate ones are delicious!

There's a / the new girl in our class. A / The girl's brother is in Dan's class.

I bought a / the new smartphone and a / the new hairdryer yesterday. A / The smartphone was expensive but a / the hairdryer was cheap.

We went to Paris last month and we stayed at a / the hotel. A / the hotel had a / the big swimming pool and a / the nice restaurant.

There's a / the cake. I can cut you a / the piece.