问题
选择题
You must learn to consider all possible results you begin to carry out your plan.
A.although
B.before
C.because
D.unless
答案
答案:B
题目分析:考察连词辨析。A尽管;B在…之前;C因为;D除非,如果不…;句意:你一定要学会在你开始执行计划之前,就考虑所有可能的结果。故B正确。