did you have a good time at laura's birthday party?surely .i did .It's several years_____i enjoyed myself so much.A.when B.before C.since D.thatc 为什么是正确的?
问题描述：
did you have a good time at laura's birthday party?surely .i did .It's several years_____
i enjoyed myself so much.
A.when B.before C.since D.that
c 为什么是正确的?
答
我已经好几年没有这么开心了，enjoy是过去式
答
C自从我上次那么开心以来，已经好几年没这么开心过了
答
C
我已好几年没那么开心了。（自从我上一次那么开心以来已好几年了。）
It's +时间+since+一般过去时从句。（自从......以来已....时间了）
答
意思是我好几年都没那么开心了
since I enjoyed myself, there are several years
答
C
我已好几年没那么开心了.（自从我上一次那么开心以来已好几年了.）
It's +时间+since+一般过去时从句.（自从.以来已.时间了）