Mr Romney has a difficult task - to look presidential without adopting the duties.
Recruiting and retaining border patrol agents has been a difficult task for the federal agency.
They will now face a difficult task in the quarter-finals against an unbeaten US side.
Officials face a difficult task in reconstructing the fire that preceded the deadly explosion.
The most difficult task will likely be Step 4, staffing the IT management process.
Treating heart failure in the hospital has been a difficult task for drug developers.
As a consequence, girls will often quit prematurely when faced with a difficult task.
This was a difficult task because this could have opened him up to charges of hypocrisy.
Not only is this a difficult task, the Internet has made sourcing incredibly difficult.
That is a difficult task and, indeed, one that Groupon itself has tried and failed.
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Now they have maybe the most difficult task: summarizing it all for the jurors.
The delay in even starting that process is only making a difficult task harder.
Pensions that believe their fiduciary duty includes getting involved in brokerage decision-making face a more difficult task.
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"I have to go there and dominate and that's a difficult task against Hopkins, " said the 36-year-old.
Yet without Evans, Mr MacGillivray and other Aegean archaeologists would have had a much more difficult task.
Managing online relationships will always be a somewhat difficult task for people programmed to communicate in person.
Selling more Europe will be a difficult task when the polls suggest increasing alienation from the European project.
Perhaps in our information age, it is a more difficult task because it requires no props or tools.
Brooking also said that football faces a difficult task in convincing government and others that it needs money.
Chris is a world-class kicker, so I fully understand it will be a difficult task to become first choice.
As children, we are told by our parents and teachers to try harder when faced with a difficult task.
But North Korea on Sunday served a reminder of the difficult task ahead.
If Chelsea beat the European Cup holders, Barcelona will face a difficult task to quality for the last 16.
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Considering both the complexity and fragility that is the Great Barrier Reef, these marine pilots face a difficult task.
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Isolating the factors that contribute to film tourism is a difficult task.
Aside from the constant roster turnover, there's also the difficult task of making it back to the Super Bowl again.
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In order to fully rebound, Acapulco needs to carry out the difficult task of both improving security AND promoting tourism.
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But proving just how much damage can be blamed on the oil spill will be a difficult task in the courtroom.
They made absolutely no effort at all to score quickly and leave England with a difficult task of batting out time.
Its Iridium satellite-based global phone system switches all calls in the sky without using any ground stations, an impossibly difficult task.
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