做早操的英文是"do moring exercise"还是"do morning exercises"

做早操 do morning exercises 还是do morning exercise exercise 和 exercises的区别?do morning exercises是做早操?do morning 做早操的英文是exercise还是exercises 做早操do morning exercise,要用单数还是复数? do morning exercises 早操加不加S 做早操对我们是有好处的.[这句话的英文] Doing morning exercises is 我经常看见他做早操（I often see him do morning exercise） 被动语态英文 求问做运动是do exercise还是do exercises? do exercise 和do exercises的区别 是该我们做早操的时间了.It's ( ) ( ) ( ) ( ) ( ) morning exercises. do moring exercises 和 do some exercise 为什么一个加s 一个不加 〈做运动〉用英语怎么说? do exercise 还是 do exercises ?