Поставьте предложения в вопросительную форму, а 2 е и 4е предложение в отрицательную форму??? 1. For the last five years the railwaymen put into operation 3,200 km of new tracks. 2. These students will take part in the students scientific conference. 3 Electronics and television will find a wider application on our railways. 4. This Institute trains specialists for railway transport.