II. Uzupełnij zdania, wstawiając: a, an, one lub ones.

1. Barcelona is ...............of my favourite destinations.

2. You can choose any book. Which .........................do you want?

3.I just bought new head phones; my last ...............were broken.

4................day I’ll make roast potatoes as good as my grandma’s.

5.There’s ...............documentary on Channel 5 in half an hour.

6. I prefer those glasses, but I can only afford these .......................​