OK, once again from Paul Brians’ book Common Errors in English Usage (to which he allows free access under this hyperlink), here is a worksheet on differentiating the adjectives incredulous and incredible. Both of these words contain the Latin word root cred, which means believe. In any case, this is a full-page document with a two-sentence reading and ten modified cloze exercises. But, as with nearly everything you’ll find published on this blog, this is a Microsoft Word document, so you may alter it to the needs of your curricular situation.
If you find typos in this document, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.
Mark's Text Terminal 