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: Those deaths marked the final dark act to seal this tomb.

A: Plural
****
Q: My eyelids are heavy, my fingers and toes sting with cold.

A: Plural
****
Q: For so many years the whistle had been my first resort, the quickest way to communicate with fellow hikers.

A:
Singular
****