问题描述：
He is the only one who knows the truth of the …
He is the only one who knows the truth of the event.(保持原意）
＿＿＿ ＿＿＿ ＿＿＿him knows the truth of the event.
He is the only one who knows the truth of the event.(保持原意）
＿＿＿ ＿＿＿ ＿＿＿him knows the truth of the event.
问题解答：
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