The art of assigning articles a/an/the

https://writingcenter.gmu.edu/guides/definite-and-indefinite-articles

Original cloze exercise: fill in the X with a/an/the/nothing 

This image titled at X National Gallery of Art in X Washington, DC is titled

Jack-in-Pulpit Abstraction - No. 5, 1930 (more)

One of X most significant artists of X 20th century, Georgia O’Keeffe (1887-1986) was devoted to X creating imagery that expressed what she called “the wideness and wonder of the world as I live in it.” O’Keeffe’s images—instantly recognizable as her own —include abstractions, large-scale depictions of X flowers, leaves, rocks, shells, bones and X other natural forms, New York cityscapes and paintings of X unusual X shapes and X colors of  X architectural and landscape forms of northern New Mexico.

X Georgia O'Keeffe Museum preserves, presents, and advances X artistic legacy of  X Georgia O’Keeffe and of Modernism through X innovative public engagement, education, and X research.  -- Derived from https://web.archive.org/web/20191226135742/https://prints.okeeffemuseum.org/ 


College level cloze exercise https://writingcenter.gmu.edu/guides/definite-and-indefinite-articles
Rules of thumb, flow chart, examples https://www.germanna.edu/wp-content/uploads/tutoring/handouts/Use-of-Articles.pdf
Articles exercises from the OWL https://owl.purdue.edu/owl_exercises/grammar_exercises/articles/articles_exercise_1.html
more examples https://www.butte.edu/departments/cas/tipsheets/grammar/articles.html