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How the ear works 1
Watch the video and answer the questions.
Answer the questions using a, b, or c.
Answer the questions using a, b, or c.
Answer the questions using a, b, c or d.
Answer the questions using a or b.
Answer the questions using a or b.
Answer the questions using a, b, or c.
Answer the questions using a, b or c.
Answer the questions using a, b or c.
Answer the questions using a or b.