问题补充:
It is a long time since I last saw you . This sentence means
A. I had seen you for a long time
B. I have seen you for a long time
C. I haven’t seen you for a long time
D. I saw you again before long
答案:
A. I had seen you for a long time
B. I have seen you for a long time
(答案→)C. I haven’t seen you for a long time
D. I saw you again before long
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