Which sentence contains an error in subject-verb agreement? heart and soul is the name of my brother's band. the walls or the ceiling are going to be painted beige. every student and teacher is looking forward to homecoming. the mayor and several city council members oppose the new parking restrictions

The sentence that contains an error in subject-verb agreement is: The walls or the ceiling are going to be painted beige. This sentence contains an error since the compound subject "walls and ceiling" are connected by the word "or". It is a general rule that when a compound subject is connected by "or", the closer subject should agree to the verb. Therefore, since ceiling is a singular word, the verb that should be used should also be singular which is "is".