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: Names, characters, businesses, places, events and incidents are either the products of the author's imagination or used in a fictitious manner.

SOLUTION: Plural

PROBLEM: If I worked fast enough, adrenaline put up a wall between me and my throbbing headache.

SOLUTION: Singular

PROBLEM: My worries quickly ebb as Mr. Cameron pulls on the leash and steers Spartacus toward the house.

SOLUTION:
Plural