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: A plastic tarp, stolen from the highway department, capped the works.

SOLUTION: Singular

PROBLEM: A young widow, Anne Marie had adopted the girl after volunteering at a local grade school.

SOLUTION: Singular

PROBLEM: " My apologies, " the vampire said to the stranger nervously.

SOLUTION:
Plural