Question gap fill question

[jaanns]

Hi!
I am creating a testing program. I would like to make a question type like a gap fill exercise, like this, Adit Testdesk Feature Tour - Gap Fill Question | Adit Software
What are your ideas of making this?

 

[jmcilhinney]

My first thought would be a RichTextBox with links in it. Click a link to open an editor for the contents of that link.