单选题
I think you must be mistaken about seeing him at the theatre; I"m sure he ______ abroad all week.
A、
is
B、
was
C、
has been
D、
had been
【正确答案】
C
【答案解析】
[解析] 用现在完成时表示影响或结果，他整个星期都在国外，所以“你说你在剧院见到他，你一定是搞错了。”
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