How are most adjectives changed into adverbs? A. By adding -ly to the end of the word. B. By including an irregular verb. C. By adding a suffix -d or -Ed. D. By moving their place in the sentence.
The correct answer is A- By adding -ly to the end of the word. For example,
This is a beautiful presentation. "Beautiful" is an adjective
That was beautifully presented. "Beautifully" is an adverb.