可能导致CES业务出现误码的因素（）。A.LIU部分电路问题； B.本板时钟质量低

The memory of our schoolhood is so sweet. It is five
years now since I g _____ from No.3 High School. Last
Saturday, the class that I was in____(举行)a get- 
together, which____(花费)use long time to prepare. 
It was indeed not easy to get in___ with everybody 
and set a good time____ all of us. We all enjoyed this 
precious day greatly,___(回想起)the time we spent 
together and the people we were f with. It was a
pity____ some of us were not present as they
had gone____ for further studies, but they called back
or sent greeting____(卡片)from different places. I hope 
all of our classmates really get together next time.