In this task you are given a sentence. You must judge whether the object of the main clause is singular(like: apple) or plural(like: apartments). Label the instances as "Singular" or "Plural" based on your judgment.

So watch your danger areas.
Plural

' They have been concentrating their efforts on building up forces in preparation for D-Day, which didn't happen.
Plural

He'd left his single shot rifle nearby when there was a crunching footstep from behind.

Singular