Question

9. Writing twelve one-act plays and two longer works kept him busy for two years.

A) prepositional (0 points)
B) participal (0 points)
C) appositive (0 points)
D) gerund (1 point)

10. Falling into three main phrases, O'Niell work grew stronger during his life.
A) prepositional (0 point)
B) participal (1 point)
C) gerund (0 point)
D) infinitive (0 point)

Answer 1

The answers are the following:
9. D. gerund
Gerunds are action words but considered as a subject of the sentence. it has a specific form which is verb+ -ing.

10. B. participial.
Participles and gerunds are similar with their form, which is verb + -ing, but they differ by their functions. If gerunds are used as a subject, participles are used as an adverb or adjective.