The manager of the travel agency was trying hard to figure out how he would attract more customers _____ an extraordinary idea _____ his mind and he immediately knew what to doA.when; flashed acrossB.as; crossedC.when; hitD.before; struck
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A解析试题解析：when在这里引导时间状语从句，flash across(into/through)想法闪过，闪现；cross 穿过，hit敲击，strick指突然想到某人或某个主意，由agency was trying hard to figureout...可知agency是经过苦思冥想才想出的主意，故选A。考点：词义辨析。
点评：近义词的辨析，要求考生要牢记这些词的具体用法。