Ответ:

1) Labels: 1 — blue and yellow tie; 2 — dark blue jumper; 3 — grey trousers; 4 — green jacket; 5 — black tights; 6 — green and purple skirt; 7 — black shoes.

2) Who says these things:

  1. J (Josh)
  2. S (Sara)
  3. J (Josh)
  4. J and S (Josh and Sara)
  5. S (Sara)