What about ________ out for a walk

I don’t think it is _____ useless competition, because it has offered us ____valuable experience for the next competition.

17 The boy sat at the top of the hill, looking at the valley ______

Paul , please take this CD to ______ English teacher .—OK .

_____ there is still a long way to go, we believe that the doctor-patient relationship in China is gradually improving.