Ithasn的精选

问题详情： Ithasn’tbeenannounced______theplaneistotakeoff.A.where          B.when       C.how        D.why【回答】B知识点：连词题型：选择题...

问题详情： July28th,2003London—Ithasn'tbeenlikethissincethedeathofDiana.BritainhasbeensufferingfromanationalnervousbreakdowneversinceDavidBeckham,handsomeidoloftheManchesterUnitedSoccerTeam,announced...

问题详情：Ithasn'tbeenmadeclear________thenewundergroundlineistobeopentotraffic.【回答】when句意：新的地铁线路何时开放还不清楚。由句意可知填when。这是when引导的主语从句，it是形式主语。知识点：主语从句题型：阅...