Grammar Exercise: Indefinite Article and 'One'

1. Look on the table in the lounge. There's only a table, it should be easy to find.
    Correct
    Not Correct

2. It's a very nice laptop computer. It seems very fast.
    Correct
    Not Correct

3. There's only a piece of cheese left. We need some more.
    Correct
    Not Correct

4. It's not that door. It's a door to the left. Yes, that one!
    Correct
    Not Correct

5. The robber pulled out a gun and told everyone to get down.
    Correct
    Not Correct

6. I only saw him a time. I don't even remember his name!
    Correct
    Not Correct

7. If you have a letter for me, put it on the table.
    Correct
    Not Correct

8. For this recipe, we need three eggs and a pint of milk. Do you have that?
    Correct
    Not Correct