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.

Q: You must have made a big impression on him. "

A: Singular
****
Q: ' They have been concentrating their efforts on building up forces in preparation for D-Day, which didn't happen.

A: Plural
****
Q: But she sent up a silent prayer that her mom agreed to it.

A:
Singular
****