1)
Design and construction of roads, bridges, buildings - civil engineering Science of very low temperatures - cryogenics Science of communication and control in machines and brain - cybernetics Study of work environments and conditions - ergonomicsScientific study of the chemical nature and natural forces influencing stars - astrophysics Study of the influence of a country’s position on its politics - geopolitics Scientific study of space travel - astronautics Scientific study of human races and their characteristics - ethnology2)
Empty the washing machine. They have installed all the latest household appliances.The factory’s current technology requires new industrial machinery. The tin-opener is a handy device. Gadgets are small mechanical tools. Motor bikes are dangerous to ride.
В Вашем случае задан специальный вопрос.
Why(вопросительное слово) don't(вс глагол+отрицательная частица not) you(подлежащее) want?