81.   Many experts doubt they ever will.

82.   Long-established cancers may respond to a variety of different signals like this, so experts doubt that blocking just one will be a reliable cure.

83.   One had it that he might be in Bimini, in the Bahamas, but organized crime experts doubt it.

84.   Some China experts doubt this.

85.   Should the excavation threaten to make the tower wobbly -- experts highly doubt that -- the suspenders would then be pulled tight to stabilize it.

86.   Some experts doubt the monster exists.

87.   Some experts doubt income and spending statistics in Russia, maintaining most people conceal at least some of their income from the authorities in order to dodge taxes.

88.   Some experts doubt income and spending statistics in Russia, saying that most people conceal at least some of their income in order to dodge taxes.

89.   The new government therefore will have to tread cautiously in its legislative program, and many experts doubt it will last a full five-year term.

90.   The U.N. mine expert Bragden doubted vast sums could be reaped from the new technology.