Question

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

Answer 1

1)     C be provided  
2)     D are released
3)     B consuming  
4)     A to be  
5)     A obtaining  
6)     C increasing