Tom, clean up the broken glass _________ someone walks on it.
------ What made little Tony so unhappy and cry in his room? ------- _________to go biking with his brother.
----- Sally is strongly against taking the trip to Hainan. ----- _______? It was she who suggested the plan.
Was it not until you began to work ____ how much time you had wasted?
_____ some teenagers don’t realize is ____ difficult life can be after they get addicted to drugs.
When I got off the crowded bus, I found my pocket _____ and the disk in it with the important documents gone.