10. Допишите ответ. (§ 15) Is it his jacket?

Is it his jacket? - No, it isn't. 1. Is it his sandwich? - No, it isn't. 2. Is his pencil red? - No, it isn't. 3. Is it your dog? - No, it isn't. 4. Is his house big? - No, it isn't. 5. Is your cat red? - No, it isn't.