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: Yelling and running footsteps suddenly exploded all around us and I jerked into a sitting position.

SOLUTION: Plural

PROBLEM: When the snakes emerged, so would the coyotes.

SOLUTION: Plural

PROBLEM: " And on your ninth birthday did your father lock you in the closet with a... "

SOLUTION:
Singular