问题补充:
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:
A. It
(答案→)B. As
C. That
D. What
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。