The picture whcih was taken(taken)by Yongliwen为啥替换
问题描述：
The picture whcih was taken(taken)by Yongliwen为啥替换
The pictures （whcih were taken）(taken) by Yongliwen【括号里的taken是同义词转换】不明白的是为什么替换不用（were taken ）这道题的语法是什么.
答
最好给出完整的句子,如果taken by Yongliwen是修辞前面的名词The pictures就只能用过去分词或者定语从句（定语从句加上which were）