Choose the option that best completes the gap(s).He isn't coming home, is he? _____ he isn't
Answer Details
The speaker of the first sentence is expressing doubt about whether or not someone is coming home, and is seeking confirmation or denial of their doubt in the second sentence. The second sentence, therefore, needs to be a confirmation or denial of the doubt expressed in the first sentence.
Among the given options, the word that provides a clear and simple confirmation of the doubt expressed is "no." This would mean that the person is not coming home, as the speaker had suspected. Therefore, the correct option is "no."