It’s stresses the digusting, offensive nature of the stairway
The correct answer is "I think you left your biology notebook on the bleachers yesterday"
Explanation:
The words "your" and "you're" are homophones because their pronunciation is the same and they are written similarly. However, they have a different meaning because the word "your" shows possession, while the word "you're" (you are) comprises a subject and the verb to be. In this context, the only sentence that is completely correct and uses these homophones correctly is "I think you left your biology notebook on the bleachers yesterday" because in this the word "your" is used to show possession, which matches its meaning.
Not sure which word is bolded, but I can still help you out. There are two pronouns in this sentence: we and us.
If we is bolded, the answer is C. nominative case. These pronouns are often the subject of a sentence.
If us is bolded, the answer is A. objective case. The object of a sentence receives the verbs attention. In this sentence, you ask "What is surrounded?" to understand that us is objective case.
Just so you know, possessive case is when the pronoun owns something. For we, the possessive pronoun is our. We went home to our house.