1. It is a(n) ......... to argue with your friends.





2. The new assistant made a ........., and as a result all the accounts were messed up.





3. Don't blame yourself; it's not your .........!





4. The engineer was quick to point out the technical ......... in the drawing.





5. I can understand your Spanish in spite of the grammar ......... you make.





6. Sorry, I didn't mean to say that; it was a(n) ......... of the tongue.





7. Whose ......... is it that the pizza delivery's late? Yours, I'm afraid.





8. Your composition is full of ..........





9. You will make a terrible ......... in introducing her to your parents.





10. The child broke the expensive vase, but it was his mother's ......... for letting him play close to it.