It was impossible to tell whether he was there to spy for us or on us.
Unlike other known political figures such as Sir Winston Churchill, she said, it was impossible to tell how popular the items would be.
Bill was a force of nature, and so it was impossible to tell whether his outburst was genuine or calculated drama, but it amounted to an earthquake.
The last four digits of all of the numbers in the filing were redacted, meaning that it was impossible to tell which specific phones investigators were trying to identify.
However, they acknowledged it was impossible to tell whether this was a result of the medication itself or the genetic traits which may be shared between autism and conditions requiring such treatment.
While the prices were discounted it was impossible to tell at what level, so I asked her as I was simultaneously searching for the same hotels on their web site and on Expedia.
The sound was a big part of it too -- with an inordinate number of channels to position sound in the theater, it was impossible to tell whether the people sitting behind us were clapping or if it was actually someone in the Aquatics Center.
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Seven women were competing with 43 men, and as the cars spun past scarily close to the spectators it was almost impossible to tell who was inside.
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It sometimes was impossible to tell whether Mr. Plunkett had thrown a touchdown or an interception.
Ms. KING: Well, during the afternoon, it was almost impossible to tell.
The prisoners had no exposure to natural light, making it impossible for them to tell if it was night or day.
But many patients who were randomly assigned to one treatment opted to get the other instead, so it is impossible to tell which option was best.
Menasche's initial trial of the method on ten patients showed tantalizing hints of efficacy, but because there was no control group, it is impossible to tell whether the improvements seen were due to the cell transplant or to the bypass surgery the patients also received.
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