when it comes to big cities of the USA,the first ___ comes to one's mind is NewYork.

When it comes to big cities of the USA,the first ___ comes to one's mind is NewYork.
A./ B.which C.one D.that
选D.
句子意思：
当谈到美国的大城市时,第一个出现在人们心目中的就是纽约.
关键：
空前面有the first=the first one/city,序数词
考点：
定语从句中,指代事物时,当先行词是最高级、不定代词、序数词或受最高级、不定代词、序数词等修饰时,要使用关系代词 that.
这里,the first直接做先行词,因此使用that;同时,先行词在定语从句中有座主语,不能省略.
祝你开心如意!