【题目】— Did you have a good time at Laura’s birthday party?
— Yes, indeed. It’s several years ________ I enjoyed myself so much.
A. when B. before
C. since D. that
在线课程【答案】C
【解析】考查连词。“It is + 一段时间 + since + 从句”意思是“自......发生以来已经一段时间了”。故根据句意选C：这是几年以来我才玩得如此开心。