The reason______ she failed to go to the party puzzled all of the people present.
.If I _________too late last night, I could not have fallen asleep in class.
—Could you please lead your car to me this Sunday? —_________you have it cleaned after using it.
.—We flew to Egypt for the holiday and we all had a wonderful time. —_________.
Studying abroad, the boy was exposed to a way of life_________he was not at all fanmiliar.
With everyone’s face_________behind the mask, it’s hard to tell who they really are.