There is nothing more unnerving than planning a party only to be unsure about who is actually coming.
By contrast, someone with a heart problem may be unsure whether to pop pills, operate, change his diet or do nothing.
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Until we have had a full public inquiry we will always be unsure about what happened at the highest levels of government.
Referee Richmond and his assistant James Bee appeared to be unsure who the culprit was and, after a lengthy delay, O'Donnell was booked as the penalty was awarded.
Depending on the situation, your employee may be ready to return to his or her desk after regaining composure, and the rest of your team may be a little unsure of how to proceed.
All the tattoos and dyed hair and garish make-up seem to be hiding a generation unsure of who they are and what they want.
Many are also reluctant to give up their arsenals, particularly if they are unsure they can be replaced.
He himself is unsure whether to be Jack Lemmon or John Cleese, but the sublime Michelle Williams holds the screen magnetically with her dewy-eyed channelling of the young Shirley MacLaine.
Gregg also cited his 30 years working without a boss--as a House representative, governor and senator--as a factor, saying he was unsure he'd be a good fit for any Cabinet.
He said he was unsure when the orchestra would be able to resume a concert schedule.
Late last week, in an interview with Automotive News, Ghosn also sounded unsure that a deal would be struck.
With that being a T-Mobile exclusive for now, however, we're unsure that it'll be the recipient of so much pomp and circumstance.
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Game said that while it was trying to resolve the matter "as quickly as possible", it was unsure if its efforts would be successful.
Laverty has had mixed results with the Stobart Honda team this season and is unsure which bike he will be riding to defend his title.
"We had three or four trauma teams in different rooms set up and ready, " unsure of whether they would be treating a bombing suspect, injured police or bystanders, Schoenfeld said.
Harris is unsure how the offer will be received by the Glazers but believes the family should in effect take the money and hand over the keys to Manchester United.
Abrams said he is unsure how much friction there will be between Obama and Netanyahu on the issue of settlements.
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England, shorn of Morgan - arguably their only true finisher since Neil Fairbrother - are seemingly unsure of just how aggressive to be.
But he is unsure of what his role will be next season and with several players out of contract in the summer, Canvey face a potentially crucial period of change.
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Storrie himself seemed unsure last week whether he would be able to work alongside Al Fahim saying he was "very, very disappointed" by Gaydamak's decision to sell the club to the Arab.
In contrast, Japan appears to be cowering like a wounded tiger cub, unsure of its global role and the benefits of aligning itself with the world's most powerful democracy which has guaranteed its security for over half a century.
Sir Edward Heath, who as Father of the House presided over last year's election, said he was unsure as to whether the system should be changed.
Wright said he is unsure of whether or not he will be able to play on April 1 in the season-opener against San Diego at Citi Field.
Scientists are also unsure about the quality of vision that could be restored from stimulating nerve cells alone, as, in normal circumstances, there is a sigificant amount of visual processing that occurs between the photoreceptors and the nerve cells.
If I proceeded with this, I was unsure how my unique type of humor would be taken by people, because most of the videos are reflective of growing up in a Filipino American household and the humor that results from the culture clash within.
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According to YouGov some 41% think Ms Sotomayor should be confirmed, while 29% oppose and 30% are unsure.
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This means that if an umpire is unsure about a decision, then the batsman should be given not out.
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