Although Will Ferrell famously mangled it in “Anchorman,” your students needn’t, especially if you guide them through this Cultural Literacy Worksheet on the expression “When in Rome (do as the Romans do).” I’d originally tagged this as an idiomatic expression. However, since it apparently originated with Saint Augustine, who related it as advice to a traveler to Rome for the first time, it doesn’t clearly qualify as an idiom.
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.