Поставить предложения в вопросительной и отрицательной форме. 1. Considerable changes took place in the organization of research last year. 2. Study of the intrinsic properties of materials goes on a large scale. 3. Science has become a leading factor of progress of mankind this centure. 4. The world of physical theory will develop at a very high rate. 5. The applications of laser techniques are expanding very rapidly. Спасибо!
Did considerable changes take place in the organization of research last year?Is the study of the intrinsic properties of materials not going on a large scale?Has science not become a leading factor of progress of mankind this century?Will the world of physical theory not develop at a very high rate?Are the applications of laser techniques not expanding very rapidly?