Which statement does NOT reflect proper grammar?

Which statement does NOT reflect proper grammar?

• A. How may I help you?
• B. May I shampoo you now?
• C. This oil works well on a normal skin type.
• D. This oil works good on a normal skin type.

Answer: (D)

Understanding how adverbs modify verbs is key here. When you describe how an action is performed, you use an adverb. In the sentence about the oil, the verb works describes the action, so it should be followed by an adverb: "works well." Using "good" is incorrect because good is an adjective that describes nouns, not the manner of an action. That makes the statement with "works good" the one that doesn’t reflect standard grammar. The other sentences demonstrate correct forms: polite questions with may, and the oil sentence correctly uses "well" to describe how it works.

Understanding how adverbs modify verbs is key here. When you describe how an action is performed, you use an adverb. In the sentence about the oil, the verb works describes the action, so it should be followed by an adverb: "works well." Using "good" is incorrect because good is an adjective that describes nouns, not the manner of an action. That makes the statement with "works good" the one that doesn’t reflect standard grammar. The other sentences demonstrate correct forms: polite questions with may, and the oil sentence correctly uses "well" to describe how it works.