From the words lettered A to D, choose the word that best completes each of the following sentences: The teacher, as well as his students...........working ...

From the words lettered A to D, choose the word that best completes each of the following sentences:

The teacher, as well as his students...........working very hard.

Answer Details

The correct answer is "is". In the sentence, "as well as" is a conjunction that adds a similar idea to the subject "teacher". Therefore, the verb must agree with the singular subject "teacher," making "is" the correct choice. The phrase "his students" is just additional information and does not change the subject-verb agreement.