Final answer:
The question involves English language arts exercises focused on spelling, vowel identification, and modal verb usage, suitable for middle school students.
Step-by-step explanation:
The question pertains to the English subject and involves various exercises that are commonly found in language arts coursework, including spelling, word sorting, and understanding usage of language elements such as vowels, consonants, and modals.
To answer the exercises, students would need to apply knowledge of English grammar and spelling rules. An example of the kind of answer that would be expected for such exercises might be identifying vowels in the English language, which are A, E, I, O, and sometimes Y.
For improving spelling skills, it's important to recognize patterns such as the letter that comes after the C or K in words or how a certain sound is spelled in different words. When it comes to selecting the correct modal verb to complete sentences, knowledge of subject-verb agreement and context is necessary.
The correct answer is option C, Physics. In the given question, the task is to fill in the blanks with four letters that are always vowels and underline each vowel letter. Vowels are the letters 'a', 'e', 'i', 'o', and 'u'. Example: If the word is 'cat', the vowels are 'a'. So, the answer would be 'a'.