______alittleearlier,Iwouldhavecaughtthetrain.
A、DidIleaveC
本题考查的是 if 引导的虚拟条件句，省略了 if 要把 had 提前。
Themissingboyswerelastseen________neartheriver.
IntheU.K.,theQueen'sSilverJubileeisin_______.
______innsandtaverns,inparticular,gainedareputationforcleanlinessandcomfortandsetthestandardforaccommodationinotherpartsofEurope.
WhichofthefolloingisNOTincludedinthefabledFiveMountainsinChina?
Thepolicemancameuptothelonelyhousewiththedoor_______,_______thereforawhileandthenenteredit.
