What is plagarism and how to you avoid it

Which of the following questions could you ask in a discussion on vacation destinations to establish common ground?

1. saved aronnax from drowning "an incident" 2. speed of the nautilus man-of-war 3. next to captain nemo conseil 4. electricity vigo bay 5. "a coral tomb" 20,000 leagues 6. the nautilus runs aground nemo's "thunderbolt" 7. episodes are connected by aronnax's quarters 8. captain nemo's "bank" cause 9. distance aronnax traveled on the nautilus "a fine death for a sailor" 10. captain nemo sinks for revenge 50 miles per hour

Correct sentence. when her brother boarded the ship bound for america, christina stood on the pier and tearfully waved goodbye.