问题
选择题
______ 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
答案
答案：B
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。