Choose the correct preposition: “The plane flew in formation ______ the fields.”

Correct answer: Over. “Over” suits movement across and above an area, which fits a plane flying across the fields.

• On: “On” means in contact with a surface, which a flying plane is not.
• Above: “Above” describes a higher position but does not express movement across the fields as naturally as “over”.
• At: “At” indicates a point or position, not movement across an area.