71.   The melting snow adds to the water flow, but the flooding sometimes can occur without a snow cover.

72.   The new figures are likely to undercut any further attempts in Congress to reduce legal immigration, because they suggest that reductions are occurring without new government mandates.

73.   The process will not occur without irony.

74.   The president needs to send a respected, deserving nominee to the Senate, and confirmation should occur without delay.

75.   The researchers stressed that for many people sudden heart attacks occurred without warning.

76.   The Reform Party promptly announced it would file a lawsuit to stop the debate from occurring without Perot.

77.   The speech occurred without a glitch, unlike previous years when opposition legislators interrupted the president.

78.   The smoothness of these Games could not have occurred without the government.

79.   These kinds of economic reforms never would have occurred without cataclysmic economic difficulties.

80.   This occurred without the knowledge of Lake, who then headed the NSC.