A
The first time,引导时间状语从句.这句将时间状语从句前置.
At first,首先
It was the first time that .后接过去完成时,而且和本句后面不搭.
For the first time,副词短语,第一次,放在后面
A
The first time,引导时间状语从句.这句将时间状语从句前置.
At first,首先
It was the first time that .后接过去完成时,而且和本句后面不搭.
For the first time,副词短语,第一次,放在后面