QUES: It uses file signature search key feature to identify each RAW photo file format based on unique signature assigned to each file and performs RAW picture recovery from all popular brands of digital camera like Canon Nikon SonySamsung Kodak Panasonic Olympus etc

correct the punctuation.

CORRECTED: It uses file signature search key feature to identify each RAW photo file format based on unique signature assigned to each file and performs RAW picture recovery from all popular brands of digital camera like Canon, Nikon, Sony,Samsung, Kodak, Panasonic, Olympus, etc.

QUES: Originally it was an office which could only be held by plebeians

correct the punctuation.

CORRECTED: Originally it was an office which could only be held by plebeians.

QUES: When the choir reconvenes after a half hour you can already hear the harmonies of a four part choir

correct the punctuation.

CORRECTED:
When the choir reconvenes after a half hour, you can already hear the harmonies of a four part choir.