______ a little earlier, I would have caught the train.
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。
Thehousewasquietinthenight,________theoccasionalcoughingfrommythroat.
You’llbetheretomorrow--youwon’t________me________,willyou?
Whichofthefollowingisnotaninternationalvisitor?
________hehasmanyfriends,heisoftenfeelinglonely.
Motivationandpersonalitymay________thevaryingdegreesofsuccessinone’scareer.
