Вам даны несколько утвердительных предложений. Образуйте отрицательные предложения от каждого утвердительного. Задайте

1. My mum has opened the window. My mum hasn\'t opened the window. Has my mum opened the window? Who has opened the window?What has mum opened? Has my mum or dad opened the window? My mum has opened the window, hasn\'t she? 2. We have finished the work. We haven\'t finished the work. Have we finished the work? Who has finished the work? What have we finished? Have we finished or started the work? We have finished the work, haven\'t we? 3. Somebody has just left the room. Nobody has just left the room. Has anybody just left the room? Who has just left the room? Has anybody just left or entered the room? Somebody has just left the room, haven\'t they?