问题补充:
(·高考陕西卷)It remains to be seenthe newly formed committee’s policy can be put into practice.
A. that
B. which
C. what
D. whether
答案:
A. that
B. which
C. what
D. whether
解析:选D。题干的意思是:“新组建的委员会的政策是否会付诸实施还有待观察。”该句包含一个由whether引导的主语从句“whether the newly formed committee’s policy can be put into practice”,该主语从句不缺成分,所以排除B和C;由语境中的remains to be seen可知,“是否实施新政策”还有待观察,所以此处要用whether。故选D。