—I don’t believe we before.
—Well, I saw you once at a party, but we introduced.
A. have met; weren’t
B. met; weren’t
C. have met; haven’t been
D. met; haven’t been
网友回答
(答案→)A. have met; weren’t
B. met; weren’t
C. have met; haven’t been
D. met; haven’t been
解析：这题考查时态语态，第一空填现在完成时，因为有before，第二空从句意看是说在聚会上见过一次，但当时没有被介绍。选 A。