6. First floor - simple subject
7. U.S. flag - simple subject
hung - simple predicate
8. wooden benches - simple subject
I believe the type of literary device that is The Screwtape Letters is satire.
It is a novel published by C.S. Lewis in 1942, written in the epistolary form, which means in the form of letters. The novel is quite satirical, ironical, and humorous, and has to do with ridicule of religion.
