______ 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。
Please write a report ________ the above subjects are to be covered.
Motivation and personality may ________ the varying d egrees of success in one ’s career.
China is a mountainous country.Hills,mountains,and plateaus cover _______ of the total area.
Which of the following country is not a member of OECD?
PoorspeakerofEnglishthoughhewasatthetime,hestillmanagedtomakehimself________.
