问题描述：
38.I don’t know the homework _______ today.
A.onB.inC.ofD.for
38.I don’t know the homework ___D____ today.
A.onB.inC.ofD.for
WHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHY
A.onB.inC.ofD.for
38.I don’t know the homework ___D____ today.
A.onB.inC.ofD.for
WHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHYWHY
问题解答：
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