( ) happened to be a severe drought that year.
A.It B.This C.There D.Then
答案为C,是正确的.
实际上是一个there be 结构.那年有一场严重的旱灾.为什么中间夹一个happen?意思是碰巧.那年碰巧有一场严重的旱灾.there be 结构,中间插入一些东西是很常见的,对意思进行一些细化.比如：there seemed to be a lot of trees in that village.表示不那么肯定.那村庄好像有许多树.