问题
选择题
It was foolish of you to take a taxi ___ you could easily walk there in five minutes.
A.while
B.when
C.since
D.before
答案
答案:B
考查状语从句引导词. A.当……时候,强调主从动作同时发生 B. 当……时候 C. 自从……以来 D.在……以前。根据题意,当你能轻松的在五分钟内走到那儿的时候,打出租车简直太蠢了。故选B。