in at least ; in the future ; keep fit ; once in a while (偶尔,有时); thanks to (多亏 ) the future ; keep fit ; 1 I'm sure we’ll have even better health care _______. 2 Staying up ______ is all right , as long as you usuall get about eight hour’s sleep a night. 3 The website introduces some good ways to ______. 4 It takes me ________ one hour to walk 10,000 steps. 5 My grandfather is having a happy life _______ many years of healthy food and exercise.