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.

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

The red firelight glinted in his auburn hair, and I could see he might have been attractive, even downright handsome, once.
Singular

The beak opened, showing a human face inside.

Singular