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.

Q: Heather's attempts at getting him to listen never worked.

A: Plural
****
Q: Several passengers raise their digital cameras and cellphones to snap both Alex and myself.

A: Plural
****
Q: The gears were already turning in his head.

A:
Plural
****