Question

In the sentence "Mary caught a frog," the common noun serves as

a. the subject of the sentence.
b. both subject and object.
c. the verb of the sentence.
d. the object of the sentence.

Answer 1

Since the common noun here is 'frog', the correct answer is D, the object of a sentence.
A cannot be correct because the subject is 'Mary' which is a proper noun.
One word cannot be simultaneously a subject and an object, so B isn't correct.
In C, the verb is actually 'caught', verb cannot be a noun.