Question

Is this singer ___ songs you like best? 答案有：A.the one whose B.whose 我觉得应该选A

Is this singer ___ songs you like best?
答案有：A.the one whose B.whose 我觉得应该选A，但答案显示是选B，不理解。

Is this research center ________ you visited the modern
equipment last year?
A. where B. that C. the one that D. the one where答案是D

我不理解，我觉得两题是一样的，为什么一个不可以加the one 另一个可以加the one？

Answer 1

这样的题其实可以还原成陈述句来做
第一题是所属关系，是you like the singer's songs，所以用whose
第二题是特指，research center前没有the，所以加the one，如果有，可以直接用where

Answer 2

第一题的从句里的主语是Songs不是singer
第一句可以变成这样
Is this singer the one that you like his songs best?