______alittleearlier,Iwouldhavecaughtthetrain.
A、DidIleaveC
本題考查的是 if 引導的虛擬條件句，省略了 if 要把 had 提前。
Why couldn ’t you ________ an answer when I asked you why you were late?
China is a mountainous country.Hills,mountains,and plateaus cover _______ of the total area.
The Netherlands is the only country in Europe which permits euthanasia, ________ it is not technically legal there.
In 1985,_______ became the first international hotel company to open a hotel in China bearing its own name.
The volleyball match was televised ________ on CCTV.
