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: And there is some new bits thrown in the mix.

SOLUTION: Plural

PROBLEM: " Almost drowning was pretty scary, huh ? "

SOLUTION: Singular

PROBLEM: Terror over losing Mairi had taken a life of its own and it possessed him like a dark spirit.

SOLUTION:
Singular