问题
选择题
It is often said that an American starts a speech with a joke , _______ a Japanese has an apology to make.
A．which
B．what
C．while
D．that
答案
答案：C
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It is often said that an American starts a speech with a joke , _______ a Japanese has an apology to make.
A．which
B．what
C．while
D．that
答案：C