—Bob, you’re absent-minded!—Oh, I’m sorry I ______ attention to you, Miss Shute.
-What are you worried about? -Tom didn't respond ______ any of my e-mails. Something must have happened to him.
It is almost ______ that every organization has too many meetings, most of which are poorly prepared.
-Can I smoke here? -Sorry. We don't allow ______ here.
Once harm is ______ to the eco-system, all species will ______ , including man himself .
With no more wood added to the fire, it finally died ______