---It has been decades since we last met.---But I still remember the graduation party, believe it or not, ________we toasted for our separation and reunion.
The policeman _______ the facts again and again, but couldn’t piece them together.
-Are there any tickets left? -Sorry. There are ________, if __________.
If I were _________ younger, I would do ___________ I am interested in.
-Haven’t we met each other at ________ party? -Yes, but I can’t remember whether it is _________ Christmas when we were in college.
Lily succeeded, for she had made the greatest _________ and got over plenty of difficulties.