Any way to make a drop-down list with word-wrap

I is there any way to make a drop down list contain a long sentence and when you select the sentence it would actually cause the sentence to wrap into a multi-line text box?  I seem to be able to enter a fairly long string of words into the drop-down list but when you make a selection the text does not wrap and overruns the right edge of the field.  If this cannot be done is there a way to reference pre-existing comments someplace else hidden in the form and bring them into the field with the pick list?