Add punctuation: Oxford Street is one of the citys famous shopping streets filled with shops like Primark Miss Selfridge Topshop and Urban Outfitters
A: Oxford Street is one of the city's famous shopping streets, filled with shops like Primark, Miss Selfridge, Topshop and Urban Outfitters.

Add punctuation: 2 years ago 1531 xHamster surprise husband cougar
A: 2 years ago 15:31 xHamster surprise, husband, cougar

Add punctuation: The cause of the explosion has never been clear the affected area was completely uninhabited
A:
The cause of the explosion has never been clear, the affected area was completely uninhabited.