单项选择题
A. they do not have time for physical activity B. they do not know the suitable physical activity C. getting into physical activity is not so difficult D. getting into physical activity is the most difficult part
A. bringing physical activity into your timetable B. eating less and less during short periods of time C. relaxing and keeping cool D. getting as many activities as you can
A.proclaim B.cheer C.celebrate D.honor