"Isn't Mrs Webster here yet?"
"No._____,she's late."
A.To my much surprise B.My much surprise
C.Much to surprise me D.Much to my surprise
答案：D
分析：
to one's surprise或to the surprise of sb．意为“使某人吃惊的是”、“出乎意料地”,常位于句首,作状语,表示行为的结果.类似的结构有：
to one's joy/delight/pleasure使某人高兴的是
to one's sorrow使某人悲伤的是
to one's satisfaction使人满意的是
有时为了强调产生某种情感的程度,可在to后面的名词前加great, deep等形容词；或在to前加副词much,加强语气.
附：
http://attach.etiantian.com/staticpages/study/question/question_4763957.htm北京四中网校的关于Surprise的用法,总结得很好,值得一看.