问题
选择题
_____ turned out that this material was neither silk nor cotton.
A．That
B．It
C．What
D．Which
答案
答案：B
题目分析:句意：结果表明这种材料既不是丝绸也不是棉。固定句型：it turned out that ……“原来是，结果是”， 在此结构中that this material was neither silk nor cotton.是主语从句，it是形式主语，答案选B。