The phrase "advertisements has allowed" is not correct in written English.
The subject "advertisements" is plural, so it should be followed by "have" instead of "has."
Example: "Advertisements have allowed companies to reach a wider audience than ever before."
Alternatives: "ads have enabled" or "commercials have permitted".
Advertisements have allowed The Hunger Site to give more than 657 million cups of food.
That expectation has allowed CBS to sell 30-second advertisement spots for $600,000 each, more than those on "E.R.," NBC's top-rated hospital drama.
That advantage has allowed Mr. Hatch to spend millions on grass-roots organizing and advertisements trumpeting his political power and conservative credentials.
That vast disparity has allowed the Clinton campaign to fund a staff of hundreds of organizers in key swing states and run over 20,000 television advertisements.
She also said she had lost the 20 pounds required by the sponsorship deal, had posed for before and after photographs, and had allowed advertisements featuring her image to be placed in tabloid magazines.
The chairman of the commission, David M. Mason, a Republican appointee, today proposed a rule that would have allowed advertisements that urged people to call lawmakers about legislation or any "widely discussed policy proposal," so long as the commercial did not advocate the election or defeat of a lawmaker.
In that vein, a crucial vote was taken about 7 p.m. on a seemingly ludicrous amendment that would have allowed political advertisements "pertaining to the Second Amendment" to be broadcast in the 60 days before elections -- unlike other advertisements on issue advocacy that the legislation would ban.
The only close call was an amendment that would have allowed political advertisements "pertaining to the Second Amendment," that is, on the right to bear arms, to be broadcast in the 60 days before elections -- unlike other issue advocacy commercials that the bill would ban.
The order also said that Facebook, which has more than 800 million users worldwide, in some cases had allowed advertisers to glean personally identifiable information when a Facebook user clicked on an advertisement on his or her Facebook page.
In June 2008, Google reached an advertising agreement with Yahoo!, which would have allowed Yahoo! to feature Google advertisements on its web pages.
