填入一个适当的词补全对话，每空一词。

A: Dear kids!your opinion about the story of Yu Gong?

B: I think it's really interesting. Yu Gong found a good way to solve his problem.

C: Really? I think it's a little bit silly. It doesn't very possible to move a mountain.

B: But the story is trying to show us that anything is possible if you work hard! Yu Gong kept trying and didn't give up.

C: Well, I still with you. I think we should try to find other ways to solve a problem. B: But what could Yu Gong do then?

C: Well, there are many other ways. For example, he could build a road. That's better and faster than  a mountain!

A: You have different opinions about the story, and of you are wrong. There are many sides to a story and many ways to understand it.