I have never been to beijing,but it's the place____.

C.I most want to visitI most want to visit是定语从句,修饰先行词the place.此定从的关系代词本来可以用 that或which,但由于关系代词在定从中作visit的宾语,因此可以省略.A中多余了where; B中多余了in ; D中多余了...其他人都错了，你对了。可以用that 和which，为什么不能像A中用where?where在定语从句中只能作地点状语,where=in which=in the place. 而此题的定从中缺少的是visit的宾语, 而where是副词,不能作宾语的. 不能说visit in the place ,只能说 visitthe place .所以A不正确. 但如把where去掉后,就正确了.I'd like to visit 就是省略了 that或which的定从修饰the place 了.