30 ! раскройте скобки ,употребив нужную форму причастия(participle 1 или participle 2) 1. when (to ask) important questions,he frowned and answered silly things. 2. (to know) that their resources are limited,people make a decision how to allocate them in the best possible way. 3. (to enter) the building,he headed for the main office. 4.when (to take) the decision i made a mistake. 5. this is the best method that can (to use) in order to compare the productivity of capital in different industries.