how do I add a scroll bar to a large text box in a word document?

[autumn.lamb]

I am creating a form in Word that is to be used by others. I have a text box
the needs to have a scroll bar added to it in order to accomodate a large
coposition by the user. I cannot figure out how to do that. My text box
looks like what I am typing in right now, with a scroll bar nested on the
right hand side of the box, just like this text box.

 

[zkid]

Try using a Combo box instead.