QUESTION: Fix punctuation: Kaj Engmann Larsen has for 25 years in 1983 hired out periscopes by The Pantomime Theatre in the Tivoli Gardens Copenhagen
ANS: Kaj Engmann Larsen has for 25 years in 1983 hired out periscopes by The Pantomime Theatre in the Tivoli Gardens, Copenhagen.

QUESTION: Fix punctuation: There is no treatment to ensure treatment of seborrheic dermatitis forever but treatments can control the signs and symptoms
ANS: There is no treatment to ensure treatment of seborrheic dermatitis forever, but treatments can control the signs and symptoms.

QUESTION: Fix punctuation: What makes us the best choice
ANS: What makes us the best choice?

QUESTION: Fix punctuation: Configure your app to store the statements locally and then send them when a network connection is present
ANS:
Configure your app to store the statements locally, and then send them when a network connection is present.