SORU: anlam bakımından parçanın bütünlüğünü bozan cümleyi bulunuz
(I) Solar energy isn't a very recent phenomenon at all. (II) Even back in the 1930s, solar water heating systems were being made and installed. (III) The costs of installing solar energy certainly are higher than for other heating systems, yet it has a lot of advantages. (IV) But solar energy didn't come to wide use until just recently. (V) Today, more and more solar heating systems are being designed, especially for large buildings like schools, offices and hotels.