貌似有exercise to do 还是有exercise doing sth?还是两者皆可?

貌似有exercise to do 还是有exercise doing sth?还是两者皆可? they like to exercise 还是they like to do exercise practise erercise用法我知道practise doing 有practise how to do exercise加 to do 还是doing,能加how to do exercise to do sth还是 exercise doing sth?麻烦各位了,我们寒假作业里有哈. a exercise还是an exercise?到底是when do you have A exercise还是when do you have AN exercise?人人都有不同意见 take exercise +do sth还是doing sth还是to do sth? exercise什么时候加sdo morning exercise还是do morning exercises exercise可数吗exercise表示作业时可不可数?do Maths exercise还是do Maths exercises? I will do more exercise to make myself 后是应该用strong 还是 stronger? This exercise is too difficult for anyone of us to do it有何错?去掉句末it还是错的.到底错哪了? How do you exercise to keep healthy? We should do exercise to keep h___. He is too fat .He< >do some exercise 这里该加needs 还是need to 还是needs to It is beneficial for us to do morning exercise.还是It is beneficial to us to do morning exercise.beneficial怎么用,是to sb 还是for sb.像 Sunlshine is beneficial to plants这里是用to 的. take exercise &do the exercise他们有什么区别? do morning exercise和take morning exercise有区别吗 to do more exercise 与 to exercise more有何不同?一些女孩打算多锻炼来保持健康some girls are going to ______ to ______ Need I to do exercise two hours every day?还是Do I need toexercise two hours every day?