здравствуй.
Правило: Present Continuous - to be + ing.
Вопрос: To be + подлежащее + V(ing) + остальные члены предложения.
Утверждение: to be + ing.
Ответ: No, подлежащее 'm not/isn't/aren't.
Отрицание: подлежащее + to be + not + глагол + остальные члены предложения.
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2) Are Bill and Tom making a snowman? - Yes, they are.
3) Is Mr Jones playingin the snow? - No, he isn't.
4) Is Mrs Jones talking to Bill? - No, she isn't.
5) Are Bill and Tom eating sandwiches? - No, they aren't.
6) Is Molly taking photographs? - No, she isn't.
7) Is Tim eating a sandwich? - Yes, he is.
удачи в учёбе.