TASK DEFINITION: In this task you are given a sentence. You must judge whether the object of the main clause is singular(like: apple) or plural(like: apartments). Label the instances as "Singular" or "Plural" based on your judgment.
PROBLEM: The central issue revolved around the question Irene's attorney posed to the agency's lawyer.

SOLUTION: Singular

PROBLEM: ' They have been concentrating their efforts on building up forces in preparation for D-Day, which didn't happen.

SOLUTION: Plural

PROBLEM: Her teasing laughter played over his senses and stroked at his body.

SOLUTION:
Plural