我来提供几种说法：
1.Time is passing by so slowly (before).
2 I felt that time is passing by so slowly before.
3.I used to think that time goes by so slowly.
我来提供几种说法：
1.Time is passing by so slowly (before).
2 I felt that time is passing by so slowly before.
3.I used to think that time goes by so slowly.