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.

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

I don't have issues. "
Plural

" Maybe we should change sitting positions.

Plural