I. определите функцию слов, заканчивающихся на —ing: а) participle i в функции определения; б) participle i в функции обстоятельства; в) participle i в составе временной группы continuous; г) герундий. 1. the network of post-offices rendering direct service to population is growing year after year. 2. nowadays central offices are connected to long-distance offices by connecting trunks; long - distance offices are in turn interconnected by intercity trunks. 3. the voltage applied to the input of a radio frequency amplifier varies from units to hundreds of microvolts, depending on the selectivity of the receiver. 4. this method of locating objects by using radio techniques has found a wide range of applications.