input: This series started last November 1 2010 and will continue until January 31 2011
fixed: This series started last November 1, 2010 and will continue until January 31, 2011.

input: Over the past 50 years widening EU membership has promoted economic growth and strengthened democratic forces in countries emerging from dictatorship
fixed: Over the past 50 years, widening EU membership has promoted economic growth and strengthened democratic forces in countries emerging from dictatorship.

input: What is new in version 12 Version 12 may include unspecified updates enhancements or bug fixes
fixed: What is new in version 1.2: Version 1.2 may include unspecified updates, enhancements, or bug fixes.

input: That is why it is important to get the mouth in good condition before cancer treatment begins
fixed:
That is why it is important to get the mouth in good condition before cancer treatment begins.