Read Text B in Unit 5and spot the answers for the following questions.1)Please tick out the advantages of regular exercise.
A. Improving circulation
B. Making the blood pressure lowered
C. Moving the cells of the immune system efficiently
D. Boosting the immune system
E. Killing white blood cells
F. Decreasing T lymphocytes
G. Boostinga healthy heart
H. Moving the substances of the immune system freely
I. Controlling body weight