问题补充：
Sorry I’m so late, but you cannot imagine great trouble I took to find your house.
A. what
B. how
C. which
D. why
答案：
(答案→)A. what
B. how
C. which
D. why
解析：
试题分析: 句意：对不起，我迟到了，可是你不能想象我费了多大劲才找到你家。imagine后是宾语从句，根据语序可知此处是感叹句做宾语从句，对名词感叹需要用what，结构为“what +形容词+名词+主语+谓语”，答案选A。
