31.  Optimists should note that House Republicans, the main force behind impeachment, are reported scandal weary.

32.  Rather he contended that his espousal of the need for the nation to turn its eyes once again toward God was the main driving force behind his strong finish.

33.  Research grants from NIH will be the main force driving the development of the new industry, Todd believes.

34.  The difference between Lukavica and the Vrbanja bridge was that the bridge was accessible to the main force of French troops here and so could be defended.

35.  The German leader has been the main driving force behind the plan for a common currency, to be called the euro, uniting EU nations.

36.  The main force in the testing is Myriad Genetics Inc., a Salt Lake City company.

37.  The main force of that boom, however, has yet to arrive.

38.  The main forces for change were technology and increased international competition, which combined to weaken the mass-production system and alter dramatically the conditions for economic success.

39.  The main upward forces were higher stock prices and an expanded money supply.

40.  The large industrial power consumers, who have demanded lower rates, have been the main force pushing deregulation.