Нужно вставить правильный вариант, помогите)1)     Sustainable future must ___ for the next generations.A to be provided   B provided   C be provided   D have provided2)     Wastes ___ into the atmosphere, water and soil.A to b...

Нужно вставить правильный вариант, помогите) 1)     Sustainable future must ___ for the next generations. A to be provided   B provided   C be provided   D have provided 2)     Wastes ___ into the atmosphere, water and soil. A to be released   B released   C is released   D are released 3)     What would happen if we continue ___ fossil fuels at present rate? A to be consumed   B consuming   C consume   D to be consuming 4)     Relatively inert silicon is sure ___ a major material used in solar cells. A to be   B be   C to have been   D --- 5)     Scientists looked for the optimal way of ___ energy. A obtaining   B obtain   C obtained   D to obtain 6)     The ___ pressure can cause serious fault of the engine. A increase   B increases   C increasing   D to increase