Read the instructions again and fill in the blanks to explain to them how these things work.
a) To p_ _ _ in means that you connect the machine to electricity so that it can work.

b) Look,when you want to listen to the radio or watch TV,you turn it _ _.

c) When you don't want to watch TV, or listen to the radio,you turn it _ _ _.

d) When you can't hear very well,you turn it _ _.