21. The trip to that city was eye-opening for everyone, and near its end, all the young people in our group began to reflect on what it had meant. We __21___the first night we had arrived. We had all gone into the markets of the city ___22__the young people could experience its energy. But what we actually saw simply __23__ us all ---- the rundown houses, the children in rags, the people begging for money … Walking home, ___24____ under a low bridge, we came across ___25___ families of homeless people seeking a bit of dry ground to sleep on __26__ the night. We had to step over bodies as we found our way through the darkness.The poverty(贫困) was __27__ than anything my young companions had ever imagined. Back in the hotel, an air of sadness settled over the group. Many __28__ and cried. Spending time in this ___29__ moves a person to care about humanity.That evening, our group spent hours talking about what we had ___30___. Gently, I encouraged everyone to talk about the difficult ___31__ that day’s discoveries had inspired. Sitting together ___32__ a circle as everyone had a chance to speak, we all began to realize that __33___ of us was alone in our struggle to cope with our reactions.Based on my __34___ in poverty-stricken areas, I suggested that __35___ the emotions we had were painful, they could also be important in helping us to move forward. We all__36__ that we had seen things that should never be allowed to happen. ___37___, what could we do about it? Together, we began to brainstorm ways we could help to case the __38__ we had seen. As I encouraged group members to focus on __39__ they could do, a sense of determination __40___ the previous sadness, Instead of despair, these young people began to feel a call to action.
(A) put up with
(B) got back to
(C) looked back on
(D) made up for