--He's just back from work, ? -- . He is having a rest in the room. A. is he; No, he isn't B. has he; No, he hasn't C. hasn't he; Yes, he has D. isn't he; Yes, he is A. is he; No, he isn't B. has he; No, he hasn't C. hasn't he; Yes, he has D. isn't he; Yes, he is