▲语法书上说的是，当一个名词受到序数词修饰时，其后要用不定式，而不用现在分词（即这是针对不定式与现在分词的用法时说的区别）。如：

I was the first to recover. 我是第一个恢复过来的人。

He was the second to be chosen. 他是第二个被选上的人。

He is always the first to arrive and the last to leave. 他总是第—个来最后—个走。

▲没有哪本书上说，受到序数词修饰的名词后只能接不定式不能接过去分词。如：

It was the first skyscraper designed by our own engineers. = It wasthe first skyscraper which was designed by our own engineers. 它是我国工程师自行设计的第一座摩天大楼。（摘自《张道真英语语法》）

▲你的这道题并没有错：

The first textbook ______ for teachingEnglish as a foreign language came out in the 16th century.

A. having written B. to be written

C. being written D. written

此题答案选D。此处的过去分词written相当于省略的定语从句which was written。