TASK DEFINITION: In this task you are given a sentence. You must judge whether subject of the main clause is singular or plural. Label the instances as "Singular" or "Plural" based on your judgment.
PROBLEM: The images from her vision ceased as well, so he could only imagine what was happening to Elise behind him.

SOLUTION: Plural

PROBLEM: Most visitors landed at a nearby regional airport or rented a car at some major airport, like Philadelphia.

SOLUTION: Plural

PROBLEM: And a slice of your chocolate cake for dessert if there's any left when she's finished. "

SOLUTION:
Singular