That was really a great evening. It’s years I enjoyed myself so much.A. whenB. thatC. bef

问题补充：

That was really a great evening. It’s years I enjoyed myself so much.

A. when

B. that

C. before

D. since

答案：

A. when

B. that

C. before

(答案→)D. since

解析：句意，那真是一个很棒的晚上。自从我玩得这么开心已经有些年了。常用句型：It is/ has been + 时间段 + since 从句。