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.

Others worried it might be a move to cancel Ares 4 and 5.
Plural

A loud boom shook through the ship, shaking more frost atop them.
Singular

Classes started in less than two weeks and Ava began to feel the pressure to set up her room.

Plural