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: There were random shouts, insults hurled toward the other village, men raising their rifles as if ready to shoot into the air.

SOLUTION: Plural

PROBLEM: But at least his current efforts to make up for his mistakes were paying off.

SOLUTION: Plural

PROBLEM: There were six square tunnels, and Manuel entered the closest one.

SOLUTION:
Plural