Final answer:
In English, the letter 's' can sometimes sound like the letter 'sh,' but the student misspelled 'shine' as 'sin' in item 10. The student may have spelled the first sound with an 's' instead of an 'sh' due to a lack of knowledge about the correct spelling or pronunciation.
Step-by-step explanation:
In English, the letter 's' can sometimes sound like the letter 'sh' as in the word 'shine,' which is pronounced 'sh-ai-n.' However, in item 10, the student misspelled 'shine' as 'sin,' which is pronounced 's-i-n.' The student may have spelled the first sound with an 's' instead of an 'sh' because they were not aware of the correct spelling or pronunciation of the word.