Переведите предложения поставив глагол в нужную форму. 1.rein forced concrete and steel (to use-present indefinite active) widely now for the construction jf modern bridges. 2.with the introduction of centralized traffic control system the safety of railway operation (to increase-present perfect active) greatly. 3.the car (to move-past continuous active) very fast and the traffic policeman (to shop-past indefinite active) it for over-shttding.
