问题
选择题
Mr. Brown ______ his office an hour ago and he is still on his way home.
A．left
B．leaves
C．is leaving
D．was leaving
答案
答案：A
题目分析：考查时态：句意：布朗先生一小时前离开了办公室现在还在回家的路上。因为时间是an hour ago，用一般过去式，选A。
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