单选题
What does the woman mean?
A、
She did not hear what was shocking.
B、
She is not sure how to solve the mystery.
C、
She was not able to manage the project well.
D、
She feels surprised how she could finish so early.
【正确答案】
D
【答案解析】
原文：M: I was shocked when I heard you had finished your research project a whole month earlier.W: How I managed to do it? It’s still a mystery to me.
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