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 tip of a branch must have slicked straight through to his gums.

SOLUTION: Singular

PROBLEM: Part of me wanted to run to him right now and tell him the good news.

SOLUTION: Singular

PROBLEM: His footsteps echoed out of the small cabin.

SOLUTION:
Plural