do some exercises还是do some exercise对

do some exercises还是do some exercise对 是do some exercise 还是do some exercises; 是play sport还是play spo do more exercises,do more exercise,do some exercise,do some 英译汉:do some exercises do some exercise是什么意思 do some exercises 中文意思 do moring exercises 和 do some exercise 为什么一个加s 一个不加 是take some exercises 还是take some exercise do/some/sports/等于do/some/exercises吗 The students are busy__(do)some exercises ________we do some warm-up exercises together? 做早操 do morning exercises 还是do morning exercise