THE CORRECT ANSWER IS ALL OF THE ABOVE.DEFINITIONS

33. The correct answer is All of the above.Definitions:awhile - adv. for a short timewhile - n. a period of timeExplanation:Because the word awhile is an adverb, it cannot be used in a prepositional phrase. "for awhile" would be incorrect. Since while is a noun, it can be used with or without the preposition for. Therefore, all three are 9 Anh văn ôn 12correct.