Question

【题目】 It is obvious to the students __________ they should get well prepared for their future.

A. as B. which C. whether D. that

Answer 1

【答案】D

【解析】句中it为形式主语，that引导的主语从句为真正的主语。句意：很明显，对学生们来说，他们应当为未来做好充分的准备。