Negative pronouns and conjunctions

V.Complete the following sentences according to the text.

1. 
   Natural gas has a multitude of industrial uses, including...
   
2. 
   Butane, ethane, and propane are used as a feedstock for ...
   
3. 
   Synthesis gas is a mixture of ...
   
4. 
   ... is used as an additive for cleaner burning gasoline.
   
5. 
   Natural gas desiccant systems are increasingly popular in ...
   
6. 
   Adding a natural gas desiccant system to the manufacturing or drying environment allows industrial users to ...
   

VI.Correct the following statements.

7. 
   Natural gas is the largest most used energy source in industry.
   
8. 
   Synthesis gas may be used to produce formaldehyde, acetic acid and MTBE.
   
9. 
   There are a few innovative and industry specific uses of natural gas.
   
10. 
    The regulation of the amount of gas in the air leads to a more consistent and high-quality product.
    
11. 
    The industrial absorption systems differ from those used in commercial settings.