“These basic words are not wrong. The problem is relying on them repeatedly. A B2 speaker chooses more precise words according to meaning and context.”
Synonyms are not always interchangeable, and a stronger word is not automatically a better word—the alternative must fit the context of the sentence. Learners should expand their active vocabulary gradually for natural lexical variety rather than forcing formal vocabulary into every sentence.
Speech recognition on this page compares recognized words to target sentences; it is a speech practice check rather than an official TEF score estimator.
