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 determination in his voice made me stare at him.

SOLUTION: Singular

PROBLEM: A rustling sounded from the lounger beside her as Hillary stood.

SOLUTION: Singular

PROBLEM: The idiot had aimed at the window.

SOLUTION:
Singular