Ответ:

  1. to manage to connect — get through
  2. to hide or cover something so you can't see it — disguise
  3. sends (a signal) — transmits
  4. a radio signal — radio wave
  5. a system that joins things — network

Ответ: 1 — get through; 2 — disguise; 3 — transmits; 4 — radio wave; 5 — network.