__has been announced,we shall have our final exams next month A That B As C It D What

问题描述:

__has been announced,we shall have our final exams next month A That B As C It D What

B 应该是定语从句中的 关系词的选择,因为在句首所以选择AS反之用WHICH指代后边整句话,

B

B 这里as引导的定语从句修饰后面整个句子 用法类似which 但因为是在句首 故必须用as

c