If the south had won the war,( )is now the U.S might divided into several countries.

题目

If the south had won the war,( )is now the U.S might divided into several countries.
填什么,这个句子怎么理解

答案

填 what
If the south had won the war,(what )is now the U.S might （be） divided into several countries
如果当时南部胜了,现在的美国可能被分成好几个国家
你少了一个 be