问题
选择题
—I hear Mr. Zhang has gone to Beijing for a meeting.
—Really? Do you know when he ______?
A．leaves
B．was leaving
C．has left
D．left
答案
答案：D
考查动词的时态用法。根据“has gone to Beijing”可知他已经去了北京，所以离开的时间在过去，用一般过去时。
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