There are 11 pdf files all based on the same text.
I've also included the TaskMagic3 Mix&Gap file (mtx3) from which the pdfs were printed (using doPDF - http://www.dopdf.com), and which provides access to 18 interactive exercises for use with PCs and / or an IWB. This file requires TaskMagic3. (See http://www.mdlsoft.co.uk/mixandgap.htm for more info about the Mix&Gap component of TaskMagic3.)
Here is the Mix&Gap file (mtx3 -- requires TaskMagic3):
And here are the 11 worksheets: