问题: 时态
He______your letter. He_______it there days ago.
A.has received;received
B.received;received
C.had received;has received
D.received;had received
(请帮忙分析!)
解答:
鄙人觉得选A，第一句强调结果，用完成时；第二句中有ago，很显然是过去时的标志，故选A...
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