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.

But at least his current efforts to make up for his mistakes were paying off.
Plural

Americus moved over to the tall chimney.
Plural

The four members from research and information paled at this : even Michaels, who keenly remembered the biochemical agent.

Plural