Acrobat XI Pro is changing a series of yes / no questions into lists where you can only select one per column. How do I get the software to look at each line independently as a yes / no question?

Most of my document is fine.  However a few pages have a series of yes/no questions and the software is interpreting those questions as a list to check one from many.  I need it to look at each line independently.  How can I edit this form to fix this problem?