Sentence examples for challenges on that from inspiring English sources
Yet with companies like Groupon - which is said to be considering a $25 billion public offering - dominating the intersection between the Web and local merchants, eBay faces challenges on that front as well.
Energy officials and other experts say the existence of the report makes it all the more critical for investigators to determine whether the region's utilities, having received such an explicit reminder about their obligations, followed the proper protocols and met those challenges on that day.
Yet Facebook is facing myriad challenges on that front these days.
The agency is likely to face legal challenges on that vote as well.
Challenged on that, he responded: "That's what you said.
Challenged on that, he called back to say that Mr. Haider had made none.
When challenged on that point, he expressed astonishment that anyone could possibly dispute his convictions.
More than most other former presidents, Mr. Bush faces a daunting challenge on that front.
Challenged on that, he said the school and its students were lying.
