30. Which of the following sentences is grammatically incorrect?
Answer: B
He performed good on the test is grammatically incorrect.
The sentence "He performed good on the test" uses the adjective "good" incorrectly, as it should employ the adverb "well" to modify the verb "performed."
A) He performed well on the test.
This sentence is grammatically correct as it uses the adverb "well" to appropriately modify the verb "performed," indicating a manner of performance.
B) He performed good on the test.
This sentence is grammatically incorrect because "good" is an adjective and should not be used to modify the verb "performed." The correct form should be "He performed well," using the adverb "well" to describe the action.
C) He performed poorly on the test.
This sentence is grammatically correct. It correctly employs the adverb "poorly" to modify "performed," accurately describing the manner of his performance.
D) He performed adequately on the test.
This sentence is also grammatically correct. The adverb "adequately" appropriately modifies the verb "performed," indicating a sufficient manner of performance.
Conclusion
The sentence "He performed good on the test" is definitively incorrect due to the misuse of the adjective "good" instead of the necessary adverb "well." All other options correctly utilize adverbs to modify the verb and convey the intended meaning. Thus, option B stands out as the only grammatically incorrect choice.