Understatement: is irony (laugh) of something that is pitiful.
Answer: A) they're showing the movie "don't turn out the lights" in a dark theatre.
Because, the movie is telling them to not turn off the lights in the theatre.
B) I think the ushers might question a grocery bag of candy under your sweater, as you can't trust a man will candy.
Answer:
Of great significance or value likely to have a profound effect on success survival or well-being
Explanation:
1.A hurricane was coming, so everyone boarded up their windows and bought supplies
2.thomas Jefferson was a philosopher with a greath mind:In fact, he invented many devices
3.Robert, carol and tim's friend, is a wonderful cook and he often invites them for brunch
4.the inca people lived in what is now Peru, building machu picchu
5.it's very hot this week,so we're using the air conditiong a lot, even if it is expensive