题目内容：

this was one of the buildings __in2004.Next year we will have another building__
A.built;to build B.built;built
A选项have sth to do为什么不能用呢答案选B

优质解答

答案就应该是B
第一个built是过去分词做后置定语
第二个built,是have sth.done的结构,所以也要用过去分词.
have sth.to do是“有些事情要做”
have sth done.是“让别人做某事”