where did the World Expo take place?It is in Shanghai_a new Disney World.AwhereBthatCwhichDwhen

问题描述:

where did the World Expo take place?It is in Shanghai_a new Disney World.AwhereBthatCwhichDwhen
选什么?要有思路

选B where,这是一个定语从句选择关系词的问题,这里从句中缺乏地点状语,只有where这个关系副词能代替地点,如果有in which 也是可以的.