单选题
1._______is a fact that English is being accepted as an international language.
A.There
B.This
C.That
D.It
正确答案：D
答案解析：为了保持句子的平衡，往往用先行词it作形式主语或形式宾语，而把真正的主语或宾语放到后面，尤其是that引导的主语从句往往用先行词it作形式主语。此句也可以改写为：That English is being accepted as an international language is a fact.