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: Hardware stores sure tried to cater to everyone's needs these days, and I was glad.

SOLUTION: Plural

PROBLEM: An old-school fuel gauge on the handlebars informed him that he had half a tank of petrol.

SOLUTION: Singular

PROBLEM: " Passenger trains don't come through... " Then she understood.

SOLUTION:
Plural