QUES: 21 The Service can only be used once registration has taken place

correct the punctuation.

CORRECTED: 2.1 The Service can only be used once registration has taken place.

QUES: By late 1920 Friedmann wrote in a letter to Ehrenfest

correct the punctuation.

CORRECTED: By late 1920, Friedmann wrote in a letter to Ehrenfest :

QUES: 11 Apartment For Sale In AntalyaAlanyaMAHMUTLARTurkey39000 EURO Alanya Turkey Properties Villas Homes for sale Real Estate

correct the punctuation.

CORRECTED:
1+1 Apartment For Sale In Antalya/Alanya/MAHMUTLAR/Turkey/39000 EURO Alanya Turkey Properties Villas Homes for sale Real Estate