Ответ:

1 — b) a backpack: a backpack can be about 25 cm wide and 40 cm high.

2 — c) a torch: a torch is small and can be about 15 cm long.

3 — a) a child's tent: a child's tent can be more than 2 m long, 1 m high and 1 m wide.

Ответ: 1 — b, 2 — c, 3 — a.