Your ____ is a very important part of your body. You use it to think and it sends messages to all the other parts of your body. lt tells your ____ to work, so the red ____ can go around your body. You also have lots of strong white ____ inside your body, so you can stand up. The ____ hold them together and they make them move, so you can run and walk.

Go getter 3. Reading 5.5 WB p.46 ex.5

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