【题目】 I travelled in Mountain Tai, I was deeply impressed with its beautiful scenery.
A. For the first time B. At first
C. It was the first time D. The first time
在线课程【答案】D
【解析】
试题分析：考查时间状语从句。The first time+陈述句（固定句型），第一次做某事。句意：当我第一次去泰山旅游时，我被它美丽的景色深深地吸引了。故选D。