Questioning Phrases

adverb a word or phrase that modifies or qualifies an adjective, verb, or other adverb or a word group, expressing a relation of place, time, circumstance, manner, cause, degree, etc.

pronoun a word that can function by itself as a noun phrase and that refers either to the participants in the discourse (e.g., I, you) or to someone or something mentioned elsewhere in the discourse (e.g., she, it)

interjection an abrupt remark, made especially as an aside or interruption

• Is that so? Could you provide more details to support your claim?
• Is that so? I didn't know that, thanks for sharing!
• Is that so? No way, that's crazy!
• Is that so? It's like finding a needle in a haystack.