Add punctuation: If you dont want to hear a sound for a notification tap None
A: If you don't want to hear a sound for a notification, tap None .

Add punctuation: Roth moved to the chair of Pure Mathematics in Imperial College London in 1966 and held this chair until 1988
A: Roth moved to the chair of Pure Mathematics in Imperial College, London in 1966 and held this chair until 1988.

Add punctuation: What is the difference between SPAMfighter Standard and SPAMfighter Pro
A:
+ What is the difference between SPAMfighter Standard and SPAMfighter Pro?