Choose the right negative form: 1. They no have been surfing the net all morning. They have not been surfing the net all morning. 2. Mummy has no been cooking all morning. Mummy has not been cooking all morning. 3. Sally has been not washing her since morning. Sally has not been washing her since morning.
1 They haven't been surfing the net allmorning.
2 Mummy hasn't been cooking all morning.
3 Sally hasn't been washing her since morning.
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