Difficulty: Hard

Average Score: 42%

Which of the following sentences is grammatically incorrect?

Rationale

He performed good on the test is grammatically incorrect.

The use of "good" as an adverb in this sentence is incorrect; the proper form should be "well." In English, "well" is the adverb that modifies verbs, while "good" is an adjective that modifies nouns.

A (He performed well on the test) YOUR ANSWER

This sentence is grammatically correct. "Well" is the appropriate adverb that modifies the verb "performed," indicating the manner in which he did on the test.

B (He performed good on the test) CORRECT

This sentence is incorrect due to the use of "good," which is an adjective and should not modify the verb "performed." The correct adverb to use here is "well," making the sentence grammatically incorrect as it stands.

C (He performed poorly on the test) YOUR ANSWER

This sentence is grammatically correct. "Poorly" is the correct adverb that modifies the verb "performed," indicating that he did not do well on the test.

D (He performed adequately on the test) YOUR ANSWER

This sentence is also grammatically correct. "Adequately" serves as an adverb modifying "performed," suggesting that his performance met the minimum acceptable level.

Conclusion

In summary, the sentence "He performed good on the test" is grammatically incorrect because it improperly uses the adjective "good" instead of the adverb "well." The other options correctly use adverbs to modify the verb, showcasing appropriate grammar in their constructions. Understanding the distinction between adjectives and adverbs is essential for proper sentence formation in English.

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