1.Read the passage and put a suitable word in each of the gaps
Model traffic lights are an American invenntion . Red-green system were installed in Cleveland (1).........1914.Three-color signals were (2).......in New York in 1918. They used (3).........be operated by hand from a tower in the middle of the street . The first light of the type appeared in London , on the junction between St.Jame Street (4).......Piccadilly, in 1925. Automatic signals were installed a year later. In the past, traffic lights used to (5).......very special. In New York, some light used to (6).........a statue on top
Model traffic light are an American invention . Red-green system were installed in Cleveland in 1914 . Three color signals were traffic light in New York in 1918 . They used to be operated by hand from a tower in the middle of street.The first light of the type appeared in London,on the junction between St.James and Piccadilly,in 1925. Automas signals were installed a year later .In the past , traffic lights used to be very special . In New York , some light used to put a statue on top .