seemed surprising to us was he came out first in the speaking petition.
A. It; that
B. What; what
C. It ; what
D. What; that
网友回答
A. It; that
B. What; what
C. It ; what
(答案→)D. What; that
解析：考查主语从句和表语从句。前文主语从句 seemed surprising to us缺少主语，it只能用作形式主语，文中没有指代内容，故只能用what作主语。下文为表语从句，不缺少句子成分，故用that做引导词。选D。