一道高中语法题（要解析,
问题描述：
一道高中语法题（要解析,
___has been announced ,we shall have our final exams next month.
A.As
B.What
答
选A 翻译过来是正如被宣布的,我们将在下个月举行期末考试
B不能选,what形成主语,后面的we也是主语,句子矛盾