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: " His drinks that is, " she added.

SOLUTION: Plural

PROBLEM: Plans, ideas, were racing through his head.

SOLUTION: Plural

PROBLEM: Images of his wife and children suddenly retrieved from his memory, flash in his mind.

SOLUTION:
Plural