问题补充:
单选题IknowMr.Brown;we______toeachotherataninternationalconference.A.are introducedB.are been introducedC.were introducedD.had been introduced
答案:
C解析由前句:know,说明introduced为以前的被动。
时间:2021-05-10 20:59:13
单选题IknowMr.Brown;we______toeachotherataninternationalconference.A.are introducedB.are been introducedC.were introducedD.had been introduced
C解析由前句:know,说明introduced为以前的被动。