of all was that not a sound could be heard.
A. It frightened us most
B. The thing that most frightened us
C. We were most frightened by
D. What frightened us most
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A. It frightened us most
B. The thing that most frightened us
C. We were most frightened by
(答案→)D. What frightened us most
解析:可联系答.案.网客服索取。