Объяснение:
3 Is he writing?
No,he isn't
He's reading.
4Is she playing the piano?
No,she isn't.
She's using a computer.
5 Is he skiiting?
No,he isn't.
He's swimming.
6 Are they dancing?
Yes,they are.
They are dancing.
7 Is the bird jumping?
No,it isn't
It's flying.
8 Is he watching TV?
No,he isn't
He is listening to radio.
