disappointed us most was that the guide was always asking us to leave we thought very interesting.
A. It; where
B. What; what
C. What; where
D. It; what
网友回答
A. It; where
(答案→)B. What; what
C. What; where
D. It; what
解析：考查名词性从句：句意：最让我们失望的是，导游总是让我们离开我们认为是非常有趣的东西。第一空填what做主语从句的主语，第二空填what，是宾语从句的主语，选B。