The phrase "advertisements were all" is correct and usable in written English.
It can be used when discussing the totality or entirety of advertisements in a particular context.
Example: "In the magazine, advertisements were all focused on luxury products, leaving little room for other types of content."
Alternatives: "all the advertisements were" or "the advertisements consisted entirely of".
Hence, obituaries, book reviews, articles about health ethics, politics or economy, readers' letters, reports on injuries, juridical and police inquiries, announcements of future conferences, well-being/fitness articles and medical advertisements were all discarded.
Little had been done to promote its candidacy: only four Oscar campaign advertisements were purchased; all of them appeared in the trade journal Variety, and Duvall had declined to campaign for himself or the film.
Until Apple's iPhone made a splash here, advertisements for foreign electronics were all but nonexistent; the market was almost completely dominated by local brands like Samsung and LG.
And so she was looking at Ladies Home Journalss of that era and there were all these advertisements for vibrators, saying how salubrious to health they were.
The advertisement claimed that the condiments were all rotated 180° to accommodate southpaws.
Pretty much, everyone knows what time of year it is by the "back to school" advertisements that are all over the Internet, billboards, newspapers and on TV.
Undergraduate participants were recruited by placing an advertisement on the Imperial College Medical Student Union website and were all Imperial students.
In an effort to obtain a representative sample from across Alberta, poster advertisements were sent to all primary care physician clinics across Alberta.
The advertisements are relatively all the same; overtly slutty women with massive, heaving breasts in every shot.
Mr. Raftis said of the advertisements, "It absolutely is all about informing voters about issues that I and other progressives care about".
