The correct answer is "I can't believe he has <em>swum </em>to the island." Swum is the past principle of "swim." However, if you drop the word <em>has </em>the answer would be D and the sentence would appear much more grammatically appealing. :)
D. Dear Rosanna, I just heard your good news use correct punctuation
You will never put anything else except the comma after dear... in any letter.
Answer:
serious/ mournful
Explanation:
as the passage suggests abraham lincoln 's speech was to dedicate a plot of land that would become Soldier's National Cemetery ,which is indeed serious and mournful because the land will become a place where people would mourn.
