1.complete the sentences with the correct forms of the verbs in brackets. inside your head is a remarkable organ, the brain. you use it to understand and remember things that ) around you. the brain is soft and spongy.it (make) of billions of tiny parts called cells. three coats or membranes (cover) the brain. the brain sometimes ( call) the busiest commu nication centre in the world. the brain ) your body functions and keeps all parts of your body working together. thousands of messages from all parts of the body ) to and from the brain. messages (carry) to the brain by sensory nerves. special places, or centres, on the brain receive sensory message from all parts of the body. when message 8__ (receive) by centres, the brain ) them. all day long your muscles and your brain ).
is made of
are covering
is called
controls
are sent
are carried
Is received
Interprets
are working