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.

спасибо

1. Did the railwaymen put into operation 3,200 km of new tracks for the last five years? 2. These students will not take part in the students scientific conference. 3 Will electronics and television find a wider application on our railways? 4. This Institute does not train specialists for railway transport.