---Are you good _______ running _______swimming ---Swimming.

---Are you good _______ running _______swimming ---Swimming. 改同意句:Swimming and running are good for you. Running and swimming are/is good for you. Swimming and running is good for you 还是are good for you Are you good at swimming? you,at,are,good,swimming swimming and running （） good for our health 用is还是are Running and swimming ----- good for my health. running ( )good for you are they swimming or running 回答 问what are you good at?答I good at running.可不可以 Swimming is a good way _______ fit