acknowledge

我们将在48小时内确认收到您的文件。

We will ___acknowledge receipt of your documents within 48 hours.

即便证据确凿，她也拒绝承认自己的错误。

She refused to ___acknowledge her mistake, even with clear evidence.

请签署随附的表格以确认收到此包裹。

Please ___acknowledge receipt of this package by signing the attached form.