Select the most appropriate option that can substitute the underlined words in the given sentence.
Ice melts fastly in the sun.
Show answer & explanation
Correct answer: D
Explanation
The correct answer is option 4 i.e. melts fast.
The word "fast" functions both as an adjective (a fast car) and as an adverb (He runs fast). Therefore, it already serves as a proper adverb without the need for an additional "-ly."
Adding "-ly" would result in a non-standard form that doesn't exist in correct usage of the language.
Hence, the correct sentence is- Ice melts fast, in the sun.