根据题中所给句子选择意思最相符的答案
第一题
【原句】When the archaeologists reconstructed the fragments,they were amazed to find that the goddess turned out to be a very modern-looking woman.
【题目】
They found ______ that the goddess turned out to be...
A.surpringly
B.with surprise
C.to their surprise
D.a surprise
（参考答案是C，为什么不能用A？）
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第二题
【原句】After gazing at the display for several minutes,Mr. Taylor went back into his shop.
【题目】He ______ the display for several minutes before
re-entering his shop.
A.was gazing at
B.gazed at
C.had gazed at
D.had been gazing at
（参考答案是B，为什么不能选D？）
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第三题
【原句】While this going on,Mr. Taylor was upstairs.
【题目】_______,Mr. Taylor was upstairs.
A.For the time being
B.Meanwhile
C.As it happened
D.For a while
（参考答案是B，为什么不能选C？）