1.Trees do good （to） our health.为什么要用to 不用for,不是 do sth for

Swimming is good for our health用It be+adj+to do sth替换 doing exercises and running are good for our health用to do怎样做 It's +形容词+(for sb.)+to do sth 为什么要用to do sth （ ） morning exercises is good for our health.(do) it's good for our health to eat fruit为什么要加to a good experience for sb.to do sth. To walk after supper is good for our health这句话对吗?为什么要用to wal 什么时候该用不定式如To do morning exercises is useful for our health.为 不是 It's adj for sb to do sth _____(do)exercise is good for our health. health,for,good,our,do ,sports,is,{.}连词成句 do morning exercise is good for our health 同义句