Question

How is the underlined gerund used in the sentence?

Smiling is an important step in a baby's development.



A.
direct object


B.
object of a preposition


C.
predicate nominative


D.
subject
(smiling should be underlined.)

Answer 1

and i think its A

Answer 2

yah im pretty sure

Answer 3

Actually, smiling is the subject in this sentence.

"The subject of a sentence is the person, place, thing, or idea that is doing or being something."

Answer is D.