Question

__cow is __ useful animal

Answer 1

Answer:

the cow is very useful animal

Answer 2

Answer:

acow is a useful animal

Explanation:

"A cow is a useful animal" - Here the sentence refers to any random cow we are talking about. It means we are relating it to any cow in the world in general. And "a" is used before "useful animal" just because we are referring to a single quality or character of the subject i. e. cow.

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