The use of "Unless"

In searching for our grammar discussion of the correct use of the word "unless", I found this.  It says to use it as "except if". See if this helps!  There are 10 questions at the bottom to convert using unless.  The answer is listed at the bottom of the page.  Try to do it and see if you get it right.

Good luck!!!

http://www.onestopenglish.com/support/ask-the-experts/grammar-questions/grammar-unless-and-if/146350.article