______ has been reported in the newspaper, they were about to have peace talks between the two countries when an accident happened.
A.It
B.As
C.That
D.What
网友回答
B解析考查定语从句。______ has been reported in the newspaper是从句，it和what不能引导定从，That 不能引导非限制性定从，所以选As ，代指they were about to have peace talks between the two countries when an accident happened.整个句子。