keep是什么词性keep是介词么?He keeps _____ exercise every morning to k

keep是什么词性keep是介词么?He keeps _____ exercise every morning to k He does exercise _____ keep fit用什么介词 We need _____(exercise)to keep in healthy every day. 填空题见下We do morning exercise every day to keep our body s____ Doing morning _____(exercises\exercise)is a good way to keep keep是什么词性的?介词吗 He ____ me to keep away from tobacco and do morning exercise the boy does exercise to keep fit every day although he is v (1)He s___ that we should take exercise every day to keep fi jack _____(锻炼)in the park every morning to keep fit You had ( ) exercise every day to keep healthy. We should exercise(everyday & every day)to keep