перевидите предложения,обращая внимание на перевод подлежащего! 
1) A great many scientists from various institutes were invited to work at the design of the hydroengineering complex.
2)The young specialists were offered to concentrate their efforts on the construction of bridges.
3)The designers were given the necessary information about the channels and spillways.
4)It must be said that the control system of the conveyor is looked upon as experimental one.
5)The experimental model will be followed by mass production of the mechanisms.
6)The original design of the round conveyor was already referred to in some journals.
7)The design was commented upon by some well-known specialists.
8)The construction of the new conveyor was paid great attention to.
9)The engineers` measurements and calculations can be relied on.
10)The operation of the conveyor will not be influenced by outher factors.