问题补充：
I fell in love with the pretty girl I saw her.
A. first time
B. for the first time
C. the first time
D. by the first time
答案：
A. first time
B. for the first time
(答案→)C. the first time
D. by the first time
解析：
这里考查名词短语做连词的用法，这里的the first time充当连词的作用，引导时间状语从句，类似的有：the moment/every time/each time,注意容易错选B项，for the first time是介词短语充当状语，不能接从句。
