has been announced we shall have our final exams next month.A. ThatB. AsC. ItD. What

问题补充：

has been announced, we shall have our final exams next month.

A. That

B. As

C. It

D. What

答案：

A. That

(答案→)B. As

C. It

D. What

解析：as引导非限制性定语从句，可放于主句之首，意为“正如，好像”，as指代主句的整个内容。