OFFICIAL EXPLANATION

$A, E, H$

To fill the first blank, we need an adverb describing the way' a "determined" bicyclist would practice. Determination requires time and effort, so we can predict that we need a word such as "diligently." Choice (A) assiduously, which means "persistently," matches our prediction and is the first correct answer. Choice (B) perspicaciously, which means "shrewdly" or "astutely," might describe a way to practice, but it does not convey the great effort that the word "determined" demands, so it is incorrect. Choice (C) vicariously, "felt as if taking part in the experiences of someone else," does not accurately describe the act of practicing to better one's own performance. Instead, practicing vicariously would suggest sitting down and watching someone else do the cycling. Hence, (C) is incorrect.

The second missing word refers to what a coach does with an athlete's "level of performance." "Measure" is a good prediction here and choice (E) appraise, or "evaluate," matches our prediction. The coach evaluates the cyclist's skill level and offers constructive criticism as feedback. Choice (D) excoriate means "criticize harshly" or "condemn," which is too strong a word for this context, so (D) is incorrect. Choice (F) requite means "repay" or "return" and does not make sense in this context, so it is likewise incorrect.
The detour road sign formed by the words "not only" and "but also" in the last part of the second sentence helps us fill the third blank. There will be a contrast between the two things that are important to determining the bicyclist's skill level. One part of the formula is "physical prowess," so we are looking for a word that names the other, contrasting aspect of performance. Furthermore, we can predict that because the coach is analyzing the bicyclist's "strategy," the other aspect will have to do with the mind. Choice (H) cerebral, meaning "intellectual," describes the mental part of the bicyclist's task and offers a contrast with "physical"; thus, $(\mathrm{H})$ is the third correct answer. Choices (G) somatic and (I) corporeal both relate to a physical rather than a mental aspect, so they are incorrect.

The correct answers are answer choices (A), $(E)$, and $(H)$.