Annie Dillard's great essay is standard reading in AP Language and Composition. The essay itself is not in the public domain but it occurs in most textbooks or anthologies aimed at AP Language students.
This is a rigorous multiple-choice quiz with questions patterned on the AP Lang exam--24 MC questions and 5 T/F questions for background. My students take the quiz with their annotated text in hand. This question set can easily be modified for use as a summative or a formative evaluation.
2 page quiz; 4 page key and commentary