What key feature characterizes the advanced fluency stage of language acquisition?

The advanced fluency stage of language acquisition is characterized by proficiency in complex language structures. At this stage, learners have typically developed a strong command of the language, allowing them to construct intricate sentences and effectively express nuanced ideas. They can engage with sophisticated grammatical forms, employ a wide variety of vocabulary, and demonstrate depth in their conversational skills.

In contrast, a vocabulary of around 1,000 words may suggest an early or intermediate stage of language acquisition rather than the advanced fluency that encompasses a more extensive lexicon. Use of only simple sentences indicates a limited ability to communicate effectively, which does not align with the advanced fluency stage that includes varying sentence complexities. Limited ability to correct errors reflects a lack of proficiency and self-monitoring that one would expect from individuals at an advanced fluency level, where learners are generally able to recognize and correct their mistakes effectively.