IhappenedtomeetLily的精选

问题详情：—IhappenedtomeetLily yesterday.—Luckydog！You________eachotherfortwoyears.A．haven'tseen B．hadn'tseenC．didn'tsee D．don'tsee【回答】B知识点：过去完成时及其被动式题型：选择题...