The phrase "advertisements are only" is correct and usable in written English.
It can be used when discussing the limitations or specific aspects of advertisements in a broader context.
Example: "Advertisements are only effective when they target the right audience."
Alternatives: "ads are merely" or "commercials are solely".
Her red phone advertisement is only being broadcast in Texas; aides said the campaign wanted to keep the focus in Ohio on the economy.
Like for me the advertisement is only on the packets of cigarettes".
Extensive research has found this sort of political advertisement more effective than either pure attack advertisements or those that are only self-promotional.
The Federal Election Commission ruled Monday, in a unanimous vote, that paid political advertisements are the only form of political activity on the Internet subject to federal campaign finance laws.
There is one caveat, however: such advertisements are persuasive only as long as they avoid mentioning that a fond remembrance of things past usually requires living through a long past in the first place.
In a world where advertisements are read only by people who choose to read them, the quality of the ads sharply improves.
Commercial Spam Choose this to report profiles or posts that are only advertisements and have no relevance to Couchsurfing, hosting, or events fall under this category.
There are only advertisement listing charges, and these all fall on the seller.
The idea here is that users are only shown advertisements about products they've already shown interest in, and the more they engage with the brand, the more they're rewarded when they go to purchase that product.
Advertisements constantly tell people they are only a successful person when they have bought this or that, political pressure to vote this way or that, peer pressure to do this or give that, family pressure to get a good job and a partner, or a personal pressure to measure up to someone else.
