Odpowiedź:
1 Are they studying science at the moment? No, they aren't. They're studying English.
2 Is your sister surfing the net? Yes, she is.
3 Is Dylan listening to music? No, he isn't. He's playing computer games.
4 Are you watching a good DVD? Yes, I am.
5 Are they having breakfast? No, they aren't. They are sleeping.
6 Is she taking an exam at the moment? Yes, she is.
7Are you waiting for a bus? No, I'm not. I'm waiting for my dad.
8 Is your mother working now? No, she isn't. She is visiting my grandparents.
Wyjaśnienie:
