The phrase "acknowledged the appearance" is correct and usable in written English.
It can be used when referring to someone recognizing or admitting the existence or presence of something, often in a formal or official context.
Example: "The committee acknowledged the appearance of several key witnesses during the hearing."
Alternatives: "recognized the presence" or "admitted the existence".
I press him, but he won't even acknowledge the appearance of the new weapons and ammunition my companions and I have witnessed in the camps around us.
(Participant 21) There was often the admission that looking out for, or acknowledging the appearance of worrying symptoms was something that people chose not to think about in any formalised way.
City and company officials said there was no wrongdoing, but Maximus's chief executive acknowledged the possible appearance of a conflict of interest.
However, she acknowledged that the appearance of being like other people was only possible if one maintained strict adherence to a drug regimen, a paradox she captured as follows: "[s]ometimes I forget that I have HIV anyway, I am just taking this medication".
Overall, participants showed an understanding for the gradational nature of volcanic ash hazard, acknowledging the "realistic" appearance of gradational shading, and dismissing a geopolitical constraint on hazard.
Girardi said that Hughes, at 175 1/3 innings, would be permitted to make another regular-season appearance, and acknowledged the possibility of his starting Sunday.
Earlier in the same Fox News appearance, Carson acknowledged the victims' families, saying "the poor family of those individuals had to be hurting so badly".
In both appearances, Mr. Bush acknowledged the uncomfortable reality for him that Oregon's unemployment rate, at 7.8percentt, was far above the national rate of 6.2percentt.
And although America remains, for now, the primary engine of global growth, investors are, increasingly, beginning to look at opportunities in the euro area and in Asia.Mr Greenspan, in his appearance before the Senate Banking Committee, acknowledged the important role capital inflows had played in American economic growth in recent years.
In his first public appearance since accepting the position, Gordhan acknowledged the unusual circumstances surrounding his reappointment.
