Taking part in these activities is a f______ way to add colours to your school life.
问题描述：
Taking part in these activities is a f______ way to add colours to your school life.
答
favorable ,良好的,起促进作用的我觉得是fast，不知道对不对。我先填的就是fast, 可以的， fast 可以作形容词作定语
如：
Please tell me what the fast way is to go to the airport.
请告诉我去飞机场哪条路最近。