Answer:
1. He has lived here FOR two years.
2. She has worked here SINCE 1949.
3. I have been waiting here SINCE three o'clock.
4. He has been living in New York SINCE 1929.
The line that states, "courage is a man with a gun in his hand." It is a metaphor because Lee is not comparing courage to a man with a gun with "like" or "as." Instead, she uses "is", as if she is enforcing the fact that courage IS a man with a gun. That kind of bluntness is only in a metaphor, as the author gives no room for debate.
