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.

Her first inclination, as always in such circumstances, was to dig in her heels.
Singular

As he takes me higher and higher, the throbbing becomes more demanding.
Singular

A balcony filled with onlookers had broken free of its supports and fallen to the street, smashing like a barrel hit by a boulder.

Singular