It is obvious to the students they should get well prepared for their future. A.
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It is obvious to the students _______ they should get well prepared for their future.
A. as B. which C. whether D. that
试题答案
D
考查that在主语从句中的用法，其中it是形式主语。名词性从句中that不充当成分，只起连接的作用。