Answer:
Participle
Explanation:
According to the Purdue Online Writing Lab, an infinitive is a verbal consisting of the word to plus a verb (in its simplest "stem" form) and functioning as a noun, adjective, or adverb.
According to the Purdue Online Writing Lab, a gerund is a verbal that ends in -ing and functions as a noun.
According to ThoughtCo, the supine is a Latin verbal noun.
According to Merriam Webster, participle is a word having the characteristics of both verb and adjective
Children have been known to keep their phones with them at all times. However, that is not the case when it comes the discussion about children being slaves to their phones. In (blank)...(I would add a study or research about children and their phones)
Answer:
lack of knowledge, ignorance
