Fill each gap with the most appropriate option from the list following the gap.
Where _____ buses _____ ?
Answer Details
The correct options are "do these / go". The subject "buses" is plural, so the verb should be plural as well, which is "do". And the pronoun that refers to "buses" is "these". The preposition "where" indicates a question about location, and the verb "go" is used to refer to the movement of the buses to a particular destination.