企源知识库

Using a modal auxiliary: It is our duty to devote ourselves to building a powerful China.
【正确答案】：We should devote ourselves to building a powerful China.
【题目解析】：It is our duty to do 表示做某事是我们的 责任we should 表示我们应该做某事，两者表示相同意思，可以用should 来替代