Question

select the two common nouns.
\did you know that the dallas cowboys had twenty winning seasons in a row?\ layla asked.

Explanation:

A common noun is a general name for a person, place, thing, or idea, not a specific one (unlike proper nouns which are capitalized and specific). In the sentence, "seasons" refers to a general category of time periods (not a specific named season), and "row" refers to a general sequence (not a specific named row). "Dallas Cowboys" is a proper noun (specific team), "Layla" is a proper noun (specific person), "you" is a pronoun, "that" is a conjunction, "had" is a verb, "twenty" is a number, "winning" is an adjective, "in" and "a" are prepositions/articles.

Answer:

seasons, row