1.   The social changes began to gather irresistible momentum.

2.   It appeared to have an irresistible momentum for growth demanded by its one million employees and supported by public opinion.

3.   The bill faces a difficult conference with the House, but appears to have irresistible political momentum.

4.   The legislation sponsored by Sens. Nancy Kassebaum and Edward Kennedy still faces a difficult conference with the House, but it appears to have acquired irresistible political momentum.

5.   A possible glitch in the seemingly irresistible momentum toward OPEC production cuts has come in the form of a protest by Iraq.