Here are five homophone worksheets on the noun grate, the verb grate (it’s used both intransitively and transitively), and the adjective great. These are three words students need to know and use properly–and God knows I have seen some grand usage lapses involving these commonly mistaken homophones.
If you find typos in these documents, 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.