The phrase "announcements in which" is correct and usable in written English.
It can be used when referring to specific announcements that contain certain information or details.
Example: "The announcements in which the new policies were explained were well-received by the staff."
Alternatives: "announcements that" or "announcements containing".
On Monday the network will begin broadcasting announcements in which the stars of "24" — including Kiefer Sutherland, who plays Agent Jack Bauer — encourage viewers to take steps themselves.
Yet many are oblivious to the library's broad mandate and simply associate it with, well, reading, or those soft-focus public service announcements in which a celebrity trumpets some random fact contained in the Library of Congress.
Motorists and road builders were the main beneficiaries in a series of transport announcements in which the government scrapped a rise in fuel duty and pledged a multibillion-pound spending spree on roads schemes.
The Food Network wisely refrained from producing comfort cooking shows, but it has been running public service announcements in which celebrity chefs -- including Bobby Flay and Emeril Lagasse -- urge support for local charities.
And he enjoys making provocative announcements in which his force of character must carry listeners past skepticism, as when he says that he is about to find the body of Cleopatra, or make a German museum return its bust of Nefertiti, or somehow copyright the shape of a pyramid.
Parker writes: He enjoys making provocative announcements in which his force of character must carry listeners past skepticism, as when he says that he is about to find the body of Cleopatra, or make a German museum return its bust of Nefertiti, or somehow copyright the shape of a pyramid.
As per rumors we've been seeing since early this year, the new models come in 4.7- and 5.5-inch versions, making this the first iPhone announcement in which Apple has announced more than one device size at a time.
Bryant later filmed his own public service announcement in which he addressed the issue with several of his Lakers teammates.
Monday's announcement, in which the price was quintupled to $10 per share, was an attempt to repair these problems.
At last count, nearly 800,000 people had liked the Facebook announcement in which they shared the big news.
In responding to written questions from the Senate Judiciary Committee, Mr. Holder made no mention of a 2004 announcement in which Mr. Blagojevich introduced him as a "special investigator" under a $300,000 contract with the state.
