QUESTION: Fix punctuation: The novel doctrine of the Russian Social Revolutionaries represents in its theoretical premises only a return to the preMarch 1848 Germany
ANS: The “novel” doctrine of the Russian “Social Revolutionaries” represents, in its “theoretical” premises, only a return to the pre-March (1848!) Germany.

QUESTION: Fix punctuation: If you do not have access to your router or if your network uses 8021X security contact your system support person to obtain the security information
ANS: If you do not have access to your router, or if your network uses 802.1X security, contact your system support person to obtain the security information.

QUESTION: Fix punctuation: The sliding door allows for big openings in conservatories etc
ANS: The sliding door allows for big openings in conservatories etc.

QUESTION: Fix punctuation: In 1996 when his son Frdric Romro had earned his BEPA Diploma in viticulture and oenology he returned to the domain to join his father
ANS:
In 1996 when his son Frédéric Roméro had earned his BEPA Diploma in viticulture and oenology he returned to the domain to join his father.