第2个回答 2011-06-01
1 it's years since i enjoyed myself so much(我好几年没有这样开心了)
语法:it is \has been + 一段时间 + since V过去时(从这个动作结束算起)
.== I haven't enjoyed myself so much for years
==I last enjoyed myself so much years ago.
2 It's 5 years since i came here.(我来这里有5年了)
===I came here 5 years ago
===I have been here for 5 years