TASK DEFINITION: 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.
PROBLEM: After a few minutes, the long strands were dry, but it was hard to tell.

SOLUTION: Plural

PROBLEM: " Love's not necessary to a well-matched marriage, " Victoria said firmly, " but it certainly doesn't hurt.

SOLUTION: Singular

PROBLEM: " The stench of death lies heavy on the air. "

SOLUTION:
Singular