Question

In the sentence "Mary caught a frog," the common noun serves as A. the predicate of the sentence. B. the object of the sentence. C. both subject and object. D. the subject of the sentence.

Answer 1

The common noun here is "frog" as the only other noun, Many, is not a common noun - it's a proper noun.

"frog" here is the object of the sentence: it's the object of the verb "caught" of which the subject is Mary

Answer 2

Frog is the common noun