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.

There was no quad, never had been a Henning's Café, and certainly no door on the left.
Singular

The email, as it was open and apparently unfinished, could have easily been a clue as to the whereabouts of General White and his family.
Singular

I don' t suppose we need to raise that question with them ? "

Singular