问题
选择题
I became a student ten years . I have been a student 1996. I have studied here_____ about 10 years.
A. ago, since, for B. ago ,for ,since, C. ago, before, for D ago, in, after
答案
答案：A
题目分析：句意：十年前我成为了一名学生。自从1966年以来我已经是名学生了。我已经在这学习十年了。since +时间点，具体时间，表示自从……以来；而for + 时间段，故选择A。