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. :)
The vowels of 'optimism' are o and i, and the short vowel is the 'o'
hopefully i could help
Answer:
in your own word. just search it up and re type it in your words.
Answer:
............... yes I guess......?
