1. It is a carpet on the floor.
1.1 It isn't a carpet on the floor.
1.2 Is it a carpet on the floor?
2 There are some curtains on the wall.
2.1 There aren't curtains on the wall.
2.2 Are there some curtains on the floor?
3 He must give.
3.1 He mustm't give.
3.2 What does he must give?
4 He can sing.
4.1 He can't sing.
4.2 Can he sing?
Sper ca te-am putut ajuta.
