I really love that you can use Etoys to explain all your questions and mock up the user interface you are looking for quickly and easily.
In the modified project I embedded the text in a rectangle, then locked the text (to avoid, the user changing the answer or getting frustrated by clicking to drag and winding up with a cursor shown inside the text instead). Would be best to use "Text Rectangle" inside "Connectors" in the "Object Catalog". I would still lock the text when done. If you are creating sample projects for volunteers to modify, you could then script the "Text Rectangle". Then the volunteer could simply change the text and rearrange the Q and A boxes so the answers aren't always in the same position.
There are other ways to script this as well, that could make life easier for volunteers, I am assuming you want them to focus on content creation and not learning all of Etoys.
On another note, I often see kids hunt and peck until they find the answer (or in this case drag until green). I wonder if it cold be designed differently to discourage that (at least a little) via a "Check Answers" button and/or a set of stars where you gain and lose stars for right and wrong answers?
Hope this helps,
Stephen