You can’t imagine when I received your letter.
A. how excited I was
B. how excited was I
C. how I was excited
D. I was how excited
网友回答
(答案→)A. how excited I was
B. how excited was I
C. how I was excited
D. I was how excited
解析：考查宾语从句：句意：你不能想象我收到你的信多么的兴奋。How引导感叹句，结构是how+形容词/副词+主谓，选A。