MY WIFE DIDN'T LEAVE THE CAR KEYS

Câu 49 (VDC):

My wife didn't leave the car keys. I couldn't pick her up at the station.

A.

Were my wife to leave the car keys, I could pick her up at the station.

B.

Not until I found the car keys that my wife had left, I could pick her up at the station.

C.

Had my wife left the car keys, I could have collected her at the station.

D.

Only when my wife left the car keys could I pick her up at the station.