英语定语从句Is this university you paid a visit to last year?Awher

选D .句子结构本应是Is this university ________you paid a visit to last year
还原为陈述句This university is ________you paid a visit to last year.
那么定语从句you paid a visit to last year .可以看成是you paid a visit to the university last year.
将the university 提前,即为the university (that /which ) you paid a visit to last year .因为前面主语为the university ,为避免重复,就用the one 来代替the university 做先行词.
又因为the university 在定语从句you paid a visit to the university last year中充当介词to 的宾语,所以关系代词that/which可以被省略掉.因此,句子就是This university is the one (that /which) you paid a visit to last year.变为一般疑问句
Is this universitythe one (that /which) you paid a visit to last year
如果原句为 ：Is this the university ________you paid a visit to last year
还原为陈述句：This is the university _________you paid a visit to last year .那么先行词就是the university .就可选择that或是which 或是省略关系代词都可以.

D 如果前面是Is this the university ？就可以选B C (pay a visit to the university ,作宾语）而句子中没有the,单独的university 在后面的句子中不能做成分，所以用个代词代替

Is this university that you paid a visit to last year?

答案选B。
首先判断它是一个定语从句，“you paid a visit to last year”修饰的先行词是“ university ”，我们要选择的是一个关系词，因为前面是以this is开头的，所以只能选择that。