Ответ:

  1. He sat down in his favourite armchair.
  2. The detective followed the burglar’s footprints.
  3. He cuts people’s hair. He’s a hairdresser.
  4. He’s got long hair so when he does sport he often wears a headband.
  5. Some dentists recommend using an electric toothbrush.
  6. My mum puts everything in her handbag — keys, money, mobile phone ...