问题补充:
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
答案:
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。