Подчеркните
Participle I и Participle II и
установите функции каждых, т.е. укажите, является ли оно определением, обстоятельством или
частью глагола-сказуемого.
1. Matter consists of one or a number of basic elements occurring in
nature.
2. Unless properly treated the metal can not be used for space
technology.
3. While working at a new transmitter for deaf people Bell invented a
telephone.
4. The air in many cities has been polluted by traffic and industry.