1) -Is Bob at home?-Yes,he is.
2) -Is he still busy?-No,he isn`t.
3)-Is she seventeen years old?-No,she is only fifteen years old.
4)-Is the list number 5 in Bill`s file?- No,it is in my file. Can I see it?
5)-Is Bill still at his shop? -No,his shop is open jnly to seven o`clock.
6)-Is miss Jin at home?-No,she isn`t at home yet.
7)-Is he still at home?-Yes,he is.
8) -Is Bill at the hotel?-No,he is still at his shop.