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.

His lust held him immobilized, aware but uncaring about anything but her.
Singular

The database, he believes, has not physically disappeared as first thought.
Singular

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

Plural