Difficulty: Medium

Average Score: 50%

Which sentence uses 'fast' as an adverb?

Rationale

The cars on the overpass moved fast.

In this sentence, "fast" modifies the verb "moved," which indicates it is functioning as an adverb. Adverbs provide information about how an action is performed, and in this case, "fast" describes the manner of the cars' movement.

A (The cars on the overpass moved fast.) CORRECT

This sentence correctly uses "fast" as an adverb to describe how the cars moved. It directly modifies the verb "moved," indicating the speed at which the cars were traveling.

B (The clock on the wall is 10 minutes fast.) YOUR ANSWER

In this sentence, "fast" is used as an adjective to describe the clock's accuracy. Here, it indicates that the clock shows a time that is ahead of the actual time, rather than modifying a verb, which is why it does not qualify as an adverbial use.

C (The batter could not hit the fast pitch.) YOUR ANSWER

In this example, "fast" serves as an adjective that modifies "pitch," describing the type of pitch the batter faced. It does not modify a verb, thus not fitting the criteria for an adverbial use.

D (The fast cars drove over the bridge.) YOUR ANSWER

Here, "fast" is also an adjective modifying "cars," indicating their speed. Since it describes a noun rather than a verb, this usage does not meet the requirements for an adverb.

Conclusion

The identification of "fast" as an adverb in the sentence about the cars is crucial for understanding grammatical structures. While "fast" can function as both an adjective and an adverb, only the sentence regarding the cars demonstrates its adverbial function by modifying the verb "moved." The other choices illustrate different usages, reinforcing the distinction between adjectives and adverbs in English syntax.

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