The phrase "exactly has changed" is not grammatically correct. It should be "exactly what has changed" or "what exactly has changed." Here is an example: "The company's business model has undergone some changes, but it is difficult to pinpoint exactly what has changed."
The chill is so pervasive and vague that investor Fred Wilson felt compelled to title his post this past weekend, vaguely enough, "What Has Changed," because it's sort of hard to pinpoint what exactly has changed other than to say winter is literally coming.
What exactly has changed remains a mystery.
"What exactly has changed in ten years, that a book that was acceptable then should be unacceptable now?" she said.
So what exactly has changed, that the government has decided to go on to a "full spectrum" (its term) war footing just before the holiday?
More than a year since the rules on how public listed companies should be run were revised to encourage more diversity and greater technical skills in the boardroom, what exactly has changed?
Here's the challenge: What exactly has changed?
What exactly had changed his mind?
Then the scientists looked to see what exactly had changed in the virus circulating in their blood at that time.
So Congress wanted to know what exactly had changed that Google is considering reversing that exit, and how doing so wouldn't contradict its own "core values".
In their office the next morning, Matheson noticed something different about the mood of the Research Division, though he wasn't sure what, exactly, had changed.
In the case of a yes response, respondents could indicate what exactly had changed, and an 'other' category was added to allow for other environmental changes to be recorded.
