Add punctuation: A photo gallery was opened in the museum in 2009
A: A photo gallery was opened in the museum in 2009.

Add punctuation: mscorierdll missing not found error Unavoidably PC may get infected by virus like WormWin32BagleGCmm or controlled by malware like WinXp TuneUpSuite After they are removed by antivirus such as VIPRE Internet Security 2012 the infected file mscorierdll would be deleted as well so that missing problem is found
A: mscorier.dll missing / not found error: Unavoidably PC may get infected by virus like Worm:Win32/Bagle.GC@mm or controlled by malware like WinXp TuneUpSuite. After they are removed by antivirus such as VIPRE Internet Security 2012, the infected file mscorier.dll would be deleted as well so that missing problem is found.

Add punctuation: Leading enterprises trust our knowhow
A:
Leading enterprises trust our know-how.