It must have been really difficult to choose one of the artists but I'm really happy.

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For one, because they are asset-allocation strategies, it is difficult to choose the proper benchmark to compare them to, he says.

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"It is difficult for me as everybody is saying me or Ronaldo, but Essien and Scholes are having good seasons and so it is difficult to choose one, " he explained.

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It remains difficult to persuade investors to choose Europe over the U.S., thanks to a combination of the investor-unfriendly characteristics of the European loan market and the eurozone debt crisis.

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But with so many possible doomsday scenarios to choose from, isn't it difficult to know what preparations to make?

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The reality is that it may be difficult to see which drug doctors choose until they are all being used in practice.

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So it is difficult to imagine that any company will choose to resist.

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He said that as a number of other major European countries such as Germany were also lifting immigration controls in 2013 it was difficult to assess which country Bulgarian and Romanian migrants might choose to go to.

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This is a very difficult thing, but given real information many patients will choose to go home and expire respectfully.

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That means consumers who choose to avoid genetically engineered fish may find it difficult to do so.

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And it is difficult to give users the experience they expect based on the device they choose in an ever growing world of higher user expectations.

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All of my life, everyone has always said that I am a difficult person for whom to shop, and yet, you managed to choose two absolutely perfect presents!

CNN

Whatever they choose to do, helping them survive the winter will be difficult.

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"Countries which choose a different date on an individual basis merely render this objective more difficult to attain, " the statement said.

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