问题
选择题
____ is certain, though, is that “the curse of the mummy” remains a riddle to this day.
A．As
B．Which
C．It
D．What
答案
答案：D
考察从句连词的选择。根据句子结构可知，该句为主语从句，从句中缺少is certain的主语，故选择what。
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____ is certain, though, is that “the curse of the mummy” remains a riddle to this day.
A．As
B．Which
C．It
D．What
答案：D
考察从句连词的选择。根据句子结构可知，该句为主语从句，从句中缺少is certain的主语，故选择what。