从方框中选择合适的词组并用其正确形式填入下面的句子中.使句子的意思完整. as a result die out because of protect-from
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从方框中选择合适的词组并用其正确形式填入下面的句子中，使句子的意思完整。
as a result | die out | because of |
protect…from | pay attention to | in danger |
come into being | look after | have…effect on |
after all |
He didn't ________ me though I had warned him that this lesson was very important.
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