【题目】You must learn to consult your feelings and your reason ________ you reach any decision.
A.although
B.before
C.because
D.unless

【答案】B
【解析】句意：在你作决定之前，你必须学会参考你的感觉和你的原因。before”在······前”，引导时间状语从句，故选B。