Is there a way to place the fill-in-the-blank dropdown box on top?

Hello.

I have a fill-in-the-blank quiz slide and the answered fill in the blank covers the drop down box of the unanswered fill in the blank?  Is there a way to give the open drop down box a higher z-index?  In the attachment, the bottom field is already answered and is on top of the drop down box of the top field.

Thanks for any help!  - Ryan