I don’t think I can give a answer to this without a passage or article
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. :)
Curiosity
flee the scene
1st one
Africa and asserted herself in dance. Despite the shortening of a brief marriage, Angelou continued to assert herself, drawing inspiration as the<span> mother of her son. Her presentation to the American public-at-large happened with the publication of her autobiography, I Know Why the Caged Bird Sings. The purpose of this research is to focus on the poem, "Still I Rise" to analyze the significance of Angelou's twofold strategy: the impact of the question she poses to the public; and her assertion of her heritage...</span>