QUESTION: Fix punctuation: Before you can open a QN2 file youll need to figure out what kind of file the QN2 file extension refers to
ANS: Before you can open a QN2 file, you'll need to figure out what kind of file the QN2 file extension refers to.

QUESTION: Fix punctuation: Energy Account in common units summary table by supply and use and type of energy StatBank Denmark data and statistics Accessing Data Please wait
ANS: Energy Account in common units (summary table) by supply and use and type of energy - StatBank Denmark - data and statistics Accessing Data ... ... Please wait

QUESTION: Fix punctuation: Two Except the price ebayers should read the shipping cost
ANS: Two. Except the price, ebayers should read the shipping cost.

QUESTION: Fix punctuation: Thomas Scheel architect maa and a partner at Vilhelm Lauritzen Arkitekter celebrates his 50th birthday on 5 March 2009
ANS:
Thomas Scheel, architect maa and a partner at Vilhelm Lauritzen Arkitekter, celebrates his 50th birthday on 5 March 2009.