Find the part of the sentence that contains an error:
Little did the board knew (1)/ about the concealed risks (2)/ when it endorsed the acquisition (3)/ late last year. (4)/

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Accepted Answer

1. The phrase "Little did..." uses inversion with the auxiliary "did".
2. After "did" we must use the base verb form, not the past form.
3. "knew" is past; the correct word is "know".
4. Parts (2)–(4) are fine. So the error is in (1).

FINAL_ANSWER: a

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