Select the correct word for the blank in the following sentence. The student completed the test..............

The word "quite" is an adverb that means "to a certain extent" or "fairly," but it does not convey the idea of speed. Using "quite" in the sentence would leave it incomplete and unclear about how the test was completed, failing to address the intended meaning of the sentence.

"Quick" is an adjective that describes something as fast or rapid. However, in the given sentence structure, an adverb is required to describe how the action of completing the test was performed. Therefore, "quick" cannot function correctly in this context.

While "quietly" is an adverb that indicates a lack of noise, it does not pertain to the speed of completing the test. The sentence specifically requires an adverb that relates to how fast the student finished, making "quietly" an inappropriate choice.