Level 7, Unit 12.

This pumps the blood out.

• Veins.

• Capillaries.

• Arteries.

• Heart.

These carry blood to the body.

• Veins.

• Capillaries.

• Arteries.

• Heart.

These connect the arteries and veins.

• Veins.

• Capillaries.

• Arteries.

• Heart.

These carry the blood back to the heart.

• Veins.

• Capillaries.

• Arteries.

• Heart.

This takes in the air; it helps you inhale and exhale.

• Diaphragm.

• Lungs.

• Trachea.

• Carbon Dioxide.

This transfers the air from your nose to your lungs.

• Diaphragm.

• Lungs.

• Trachea.

• Carbon Dioxide.

This helps your lungs expand and shrink; it acts as a table for the lungs as well.

• Diaphragm.

• Lungs.

• Trachea.

• Carbon Dioxide.

This is the beat of your heart.

• Diaphragm.

• Squeeze.

• System.

• Pulse.

He ___________________ride his bike to school but, now, he goes by bus.

• is used to

• used to

• uses

• gets used to

I didn't ________ ______(eat) fruits before but now I eat them.

• used to eat
• use to eat
• uses to eating
• use to eats