If you have already used the ticket for two trips on the bus you can't use it again on the metro. You can transfer between bus and metro but after leaving the metro you can't go back into it without paying another fare.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.