Nine thousand guests took part in the outdoor ceremony, that impressed so many p
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Nine thousand guests took part in the outdoor ceremony, that impressed so many people at the White House．
A．that B．this C．it D．one
试题答案
D
考查代词及同位语的用法。此处one是ceremony的同位语，其后又带了定语从句that impressed so many people at the White House。选D。