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: But immortality is such a great gift that it would only be bestowed on an individual who had something very precious to offer.'

SOLUTION: Singular

PROBLEM: All the bearded hunter could do was stare wide-eyed.

SOLUTION: Singular

PROBLEM: The other zombies roared to life, scratching and biting at Tom has he ran back to the fence.

SOLUTION:
Plural