Is doing morning ()a good habit?Yes,it is.A.exercise B.exercises C.exercising D.exercised

问题描述:

Is doing morning ()a good habit?Yes,it is.A.exercise B.exercises C.exercising D.exercised
(我知道C和D不对)

A,锻炼,不可数名词,习题,可数名词,此处为锻炼·那答案给的B哦(我也选的是A)(智力的)运用;(尤指)锻炼运动时不可数,比如说:The doctor advised him to take more exercise.(发音,体操,保健,深呼吸,钢琴等)练习,训练时可数,比如说: The teacher set her class a mathematics exercise for homework.还有(部队等的)操练,演习也是可数的,比如说:military exercises军事操练哦这样( ⊙ o ⊙ )啊!