选择题Is this research center the one foregin guest

问题描述:

选择题Is this research center the one foregin guest
Is this research center the one foregin guests visited last week?
A.that
B.which
C.where
D.the one
选了A,答案是D,想问问为什么

改写成陈述句为This research center is the one foreign guests visited last week.
缺少表语充当先行词.因此that不行.