Say the same in a different way. 1) are you sure your mum'll like this present? 2) will it be cold tomorrow? - im not sure of it. 3) would you like to play basketball with us today? - sure. 4) do you think the film is good? - im positive. 5) im not certain that i'll come here again. 6) do you think andrew will go to the restaurant with us? -i'm sure if it.

Сказать то же самое в другую сторону.1) ты уверен, что твоей маме понравится этот подарок? 2) будет ли завтра холодно? - я не уверен в этом.3) вы бы хотели поиграть в баскетбол с нами сегодня? - конечно.4) вы думаете, что фильм хороший? - им положительно.5) я не уверен, что я приеду сюда снова.6) вы думаете, что андрей пойдет в ресторан с нами? -я уверен, что если он.

Despite the fact that the profession of machine operator belongs to the category of little-known occupations, its indispensability to society is not in doubt. key responsibilities include create parts from various materials for the repair of machines and other mechanisms. elaboration of details is available in the form of special drawings and the correctness verified by the creation of optical devices. profession machine operator requires extensive knowledge in the field of the exact sciences, drawing, physics. to conduct correct choice of material for such a worker must be a specialist in materials science, as well as to understand the electrical engineering and mechanics. moreover, the self-correction and error control should be based on knowledge of usage of measuring instruments and the rules of setup of the machines, and then reviewing for accuracy. the final touch will be knowledge of the principles of calibration structures of components, their grinding and processing.