The sport then was a little different from ( ) we currently know as gymanastics.

问题描述:

The sport then was a little different from ( ) we currently know as gymanastics.
A that B what C which D where
选出正确答案并说明原因

选B
这里不是定语从句,因为主句没有先行词,from 后面的句子,是what引导的插入语,可以作为一个整体的事来看待,即from sth
原句是一个简单句
另外,then是不是打错了,影响理解能否翻译下该句,谢谢! 还有就是then 没有打错,卷子上就是这样写的