41.   The Internal Revenue Service has launched a series of internal reforms since Congress put a bill to reform the IRS on the backburner.

42.   The Internal Revenue Service has launched a series of internal reforms since Congress put on the backburner a bill to reform the IRS .

43.   The Internal Revenue Service has launched a series of internal reforms since Congress put on the backburner a bill to reform the IRS.

44.   The old trick was to launch new series after the Super Bowl.

45.   The U.S. Postal Service even is launching a series of extreme sports stamps in conjunction with the start of the games.

46.   Then he launches a series of his own businesses specializing in computers and telecommunications.

47.   This month, Khattab promised to launch a series of large-scale attacks on Russia.

48.   Thousands of Serb special police units and troops, backed by artillery and tanks, launched a series of attacks against separatist rebel positions on Monday morning.

49.   This prompted Beasley to launch a series of television advertisements attacking Hodges as a tool of the gambling industry.

50.   Twentieth Century Cos. is teaming with the Benham Group for the first time since the two companies merged last June to launch a series of three mutual funds.