Read and translate the following sentences paying attention to the tense form of the predicates in the passive voice. put general questions and special questions to the underlined words.
1) the traffic was stopped by the policeman so that the ambulance could pass. [why…? ] 2) the tickets will be checked by the conductor during the journey. [when…? ] 3) since paris is located in the center of the country [where… the passengers who spend a day in the capital can reach any city the same evening. 4) the renewal of signaling equipment on all the railroads will be financed by the government. [whom…? ] 5) more than a million students were enrolled to the institutes and universities of this country last year. [when…? ] 6) the air in the london underground is changed every quarter of an hour [how often…? ] and the temperature is maintained at 69-79 degrees fahrenheit all year round. 7) the trains of the future will be operated by automatic drivers. [whom…? ] 8) the first escalator was installed in the london underground in 1911. [when…? ] 9) the new car will be tested on the mountain roads. [where…? ] 10) a lot of roads in the usa were built by private companies [what…? ] and are paid to use; they are called toll [платный] roads. 11) at the factory young workers are trained to use the new equipment. [who…? ]