The continent_____i visited last year was not the one____i once worked.

问题描述:

The continent_____i visited last year was not the one____i once worked.
Awhich,where Bwhich,which Cwhere ,which Dwhere,where

A
第一空用WHICH 作VISIT 的宾语,第二空用WHERE 作状语第二空如果是状语,I once worked 就是可以单独成句了?他怎么单独成句?可以呀,I 主语WORK 是不及物动词作谓语不好意思啊,我句子划分不是很好,那once是个什么东东ONCE 在这里作状语不是主谓宾吗,宾语咧I once worked 中没有宾语