What is the difference between 'breadth' and 'depth' of vocabulary knowledge in the CEFR framework?
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A
Breadth refers to formal vocabulary; depth refers to informal vocabulary
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B
Breadth is how many words a learner knows; depth is how well they know each word (meanings, uses, collocations, connotations)
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C
Breadth refers to reading vocabulary; depth refers to speaking vocabulary
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D
Breadth is passive knowledge; depth is active knowledge