How did Simona's father know she finished her chores

Whenever we take information from another source – whether we use the information word for word or we put the information into our own words – we must use a(n) right after where the research occurs in the paper.

How do the authors differ in the way they present the war in "facing it" and "ambush"?

Why does the author of exploring the titanic give background information about his youth and education? to show his lifelong love for the ocean