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.

Ahead he could see two Agents, one on either side of the doors.
Plural

Doors littered the floor, shattered glass cracked and splintered beneath their feet.
Plural

The binoculars made it seem they lay almost at its mouth, though it was at least fifteen yards away.

Plural