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.

The large mansions, which lined both sides of the street, bore stately and placid witness to their conversation.
Plural

Myles showed him how they worked.
Plural

His jaws closed on Mahon's neck and held it, easy, almost gently.

Plural