【2015·湖北】This meeting room is a non-smoking area. I would like to warn you _____ that if you smoked here you would be fined.
—Could you tell Lily the meeting place? —Sure, I will __________ when I see her.
Tom tried to __________ in German.
I wonder how many years ago ___________.
He said that he would write to us but so far we ___________ from him.
__________ good exercise.