Select the word or phrase that will make the sentence grammatically correct: The professor had a huge number of tests to grade.

Rationale

The professor had a huge number of tests to grade.

The term "number" is the correct choice as it is used with countable nouns, such as "tests." In this sentence, "tests" is a plural, countable noun, making "number" the appropriate quantifier.

A (number) CORRECT

This choice is correct because "number" is used to refer to a countable quantity of items, which fits perfectly with the context of the sentence that mentions "tests."

B (amount) YOUR ANSWER

"Amount" is used for uncountable nouns, such as "water" or "sand." Since "tests" is a countable noun, using "amount" would be grammatically incorrect and would not convey the intended meaning in the sentence.

C (aggregate) YOUR ANSWER

While "aggregate" can refer to a total or a collection, it is not commonly used in this context. It lacks the grammatical correctness needed to modify "tests" in the sentence, making it an unsuitable choice.

D (stacks) YOUR ANSWER

"Stacks" refers to a physical arrangement of items, typically implying a large quantity, but it is not grammatically appropriate to substitute for "number" in this context. "Stacks" would suggest a specific arrangement rather than a count, thus not fitting the structure of the sentence.

Conclusion

In summary, "number" is the only term that correctly modifies the countable noun "tests" in the sentence. The other options either refer to uncountable nouns or lack the grammatical suitability required to convey the intended meaning. This distinction is crucial for maintaining proper sentence structure and clarity in communication.

Select the word or phrase that will make the sentence grammatically correct: The professor had a huge number of tests to grade.

The professor had a huge number of tests to grade.

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