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 squad of Canadian rangers continues to hack its way through the thick brush.

SOLUTION: Singular

PROBLEM: With a flounce of her skirts, the maid disappeared.

SOLUTION: Singular

PROBLEM: The spotlight wavered, then settled on him.

SOLUTION:
Singular