___that I was not in London at that timeA.I so happenedB.It so happenedC.I was happenedD.It was happened要解析
问题描述：
___that I was not in London at that time
A.I so happened
B.It so happened
C.I was happened
D.It was happened
要解析
答
B
答
选B.
It happened that
偶然...,碰巧...
那个so只是个程度副词.