2. Are they playing with a kite? No, they aren't. They are playing a ball.
3. Is he driving a car? Yes, he is.
4. Is she picking flowers? No, she isn't. She is picking apples.
5. Are they singing? No, they aren't. They are dancing.
6. Is she cooking chicken? No, she isn't. She is cooking eggs.
.Повторите present continuous и тогда поймёте в чём ошибка.