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.

Their neighbor said she saw a man pull into the driveway, retrieve the shears from the lawn and drive away.
Singular

Her first inclination, as always in such circumstances, was to dig in her heels.
Singular

There was a rocking and a groaning sound, and then the wall began to recede.

Singular