I regret __________ you that I'll have to leave for America tomorrow for some special reason.
Tom didn’t break the glass by accident.It was _________.
—What do you think made the girl so depressed? —_____ with her boyfriend.
___________ that he was in great danger, Eric walked deeper into the forest.
The tower ________ now in the distance will be completed in two months.
I remember _________ the doors when I left the house, but I forgot _______ you about that so that you didn’t need to worry.