—I don't think we have met before,________?
—Yes,once at a party,but we weren't introduced.
A.do I | B.have we | C.don't I | D.haven't you |
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—I don't think we have met before,________?
—Yes,once at a party,but we weren't introduced.
A.do I | B.have we | C.don't I | D.haven't you |