I'll only pick one and solve it.  I pick G. If you 
want to ask about how I got any of the steps, then feel 
free to ask below and I'll get back to you by email.  
Nobody is going to solve an entire homework assignment 
for you.  The idea here is to help you learn, not do it 
for you so you won't have to learn.

G. 
1. S > U
2. U > (T > V)
3. ~ (T > V) /: . ~S 

           |4. ~~S                AIP
           |5. S                    4, DN
           |6. U                  1,6, MP
           |7. T > V              2,6, MP
           |8. (T>V) ^ ~(T > V)   7,3, Conj. 
 9. ~(~~S)                         lines 4-8 IP
10. ~S                              9, DN      

Edwin