Помогите решить английский.

1) Electric shock
2)Primary goal
3)Earthing system
4)Ladder
5)High voltage wire
6)Plug in
1)B
2)C
3)A

1) An electric shock can appear when
the human body comes in contact with a sufficient current of electricity
2) Electric shock is sometimes used as medical therapy.
3) Grounding systems are a way to provide safety for people who work with the wires.
4) To provide safety against electric shocks you should:
-work with shut-off circuits
-check for voltage with circuit testers
-use non-conductive materials
-dry off your hands when working with wires