doing exercises and running are good for our health用to do怎样做

It is good to do exercises and running,because it's good for your health 再问： 可不可以是To do exercises and run is good for your health 用To do and do 来转换？ 再答： 不可以是To do exercises and run is good for your health。要是要用do的话，必须用doing。 doing exercises and running are good for your health。