A. Directions: Express what you have learned in this lesson by completing the sentence frames below. 1. I learned that respiratory and circulatory systems…………. ________________________________________________________________________ 2. I understand that respiratory and circulatory systems………………………… ________________________________________________________________________ 3. I must keep my respiratory and circulatory systems healthy so that……… ________________________________________________________________________ 4. I will always remember the importance of a healthy lifestyle in avoiding… ________________________________________________________________________ 5. From now on, I will …………………………………………………………………….​