Mr.hopkins has not yet answered my question()i can go with him to()he calls the underground 连下

题目

Mr.hopkins has not yet answered my question()i can go with him to()he calls the underground 连下
treasure house next week 第二个空为什么要选 what 而不选where啊 请赐教

答案

因为前面有个介词to后面接名词或名词性从句,而且从句后面he calls the underground treasure house,call sb/sth.sth.双宾结构少一个宾语,所以用what