Choose the correct option.

1) There isn't ... yoghurt in the fridge. 2) There are ... chairs in the room. 3) There's ... mirror in the bathroom. 4) There isn't ... sugar in my tea. 5) We haven't got ... CDs for the party. 6) There are ... children in the park today.7) I can see ... posters on the wall.8) Well done! There are ... mistakes in your test!