why do we say morning exercises are good for our health?请问怎么

why do we say morning exercises are good for our health?请问怎么 （ ） morning exercises is good for our health.(do) doing morning exercises --------(be) good for our health doing exercises and running are good for our health用to do怎样做 We do morning exercises every day and__is good for our healt 完形填空Doing morning exercises is good for our health.Every mor do morning exercise is good for our health 同义句 do morning exercise is good for our health 什么时候该用不定式如To do morning exercises is useful for our health.为 Doing more exercises( )(填is或are) good for our health Doning morning exercises is good for our b_ Doing morning exercise is good for our health.Every morning