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. :)
<span>1 archaic : happy, pleased
2 archaic : inclined, desirous
3 a : willing
he was very fain, for the young widow was “altogether fair and lovely … ” — Amy Kelly
b : being obliged or constrained : compelled
Great Britain was fain to devote its whole energy … to the business of slaying and being slain — G. M. Trevelyan</span>
Answer:
B and not A
Explanation:
To tell a narrative story, you should be the one telling a story of something that you have experienced. I'm sure that if there was an option that states first or third person omniscient, then my answer would be differnet. But based on the context, i believe this is the correct answer