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: Things could have gone a lot worse on the island. "

SOLUTION: Plural

PROBLEM: When my tender skin has toughened enough to withstand the pressure of sheets, more visitors arrive.

SOLUTION: Plural

PROBLEM: My degree didn't matter at all.

SOLUTION:
Singular