I went to Guiling,I was fascinated by its natural scenery.A. The first timeB. At firstC. A

I went to Guiling,I was fascinated by its natural scenery.
A. The first time
B. At first
C. At the first time
D. For the first time

(答案→)A. The first timeB. At firstC. At the first timeD. For the first time解析：考查连词。在英语中很多名词性短语都会转化成连词，连接时间状语从句，如the first time, the second, the moment等；本题中的the first time第一次…的时候；连接时间状语从句I went to Guiling；句意：第一次我到桂林的时候，就被它自然的景色给迷住考查连词了。故A正确。

我明天再问问老师，叫他解释下这个问题