______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。
Whycouldn’tyou________ananswerwhenIaskedyouwhyyouwerelate?
Thefirsttaskofabrochureisto_______.
Thehousewasquietinthenight,________theoccasionalcoughingfrommythroat.
This is ________ good reading habits are not only an important study skill for the student, but also an important life skill for anyone.
______ are the primary destinations for the Chinese at present.
