> 今は、依頼人を助けるための「情報」を聞き逃さないこと。

I understand the sentence but I don't know why she uses こと at the end.

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2020-03-01T04:32:51.227
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2020-03-01T06:09:21.013
2020-03-01T06:09:21.013
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question
meaning particle-こと
Why does she use こと at the end?