What level of speaking and writing skills involves the use of multiple complex sentences and complex organization?

The level of speaking and writing skills that involves the use of multiple complex sentences and complex organization is typically identified as Level 5. This level signifies a high proficiency in language skills, where the individual can effectively use sophisticated language structures, including various sentence types and cohesive narrative or argumentative organization in both spoken and written forms.

Individuals at this level are capable of articulating their ideas clearly and precisely, utilizing a wide range of vocabulary and grammatical structures, which allows them to express detailed arguments or descriptions. The ability to employ multiple complex sentences reflects a deep understanding of the language, supporting advanced communication in diverse contexts.