The school bus took us to go to school.
In English language, a sentence is a group of words or phrases that comprises a subject and predicate, which are typically used by an author or speaker in order to convey a logical information about a subject matter to an audience (readers or listeners).
In this scenario and exercise, the given sentence should be completed by using the most appropriate and correct word, based on the context clue derived from the given sentence. In this context, the most appropriate and correct word should be a "school bus."