Complete the sentences with the words in the box.
attach batteries cable communicate control plug press socket switch tube wheels
1 Before you use your computer, you have to... it into the... .
2 ‘What is this... for?’ ‘I use it to... the keyboard to the computer.’
3 A car has four... , but large lorries have more.
4 Mum bought my brother a car with a remote... , but she forgot to buy... for it.
5 The water goes through a long ... here and comes out there.
6 If you want to... off this machine, ... this red button here.
7 Do you... with your friends by phone or email?