问题
选择题
Television, marked by rapid change and refinement, is entering a new period, ____ to reshape our
life and our world.
A．that promises
B．as is promised
C．which promises
D．what promises
答案
答案：C
主要测试定语从句。句子中含有逗号，这是解题的关键。所以属于非限制性定语从句, 用来补充说明另一新内容, 故选C.