Edison was the first scientist to build a modern research and development centre
问题描述：
Edison was the first scientist to build a modern research and development centre
Edison was the first scientist _____a modern research and development centre
1.to build
2.built
3.to be building
4.having built
答
没错,选1
前面有序数词时,后用不定式
此时不定式在句中作定语,其功能相当于一个定语从句,二者可转换
比如这句就可以换成Edison was the first scientist who built a modern research and development centre.
再给你一个平常做题时常见到的句子：He was the first to arrive and the last to leave.