Tom, clean up the broken glass _________ someone walks on it.
What I need is ___________ book that contains __________ ABC of oil painting.
---What’s your comment on the match?--- We ________, but today was not our day.
The experts have given some practical advice ______ the problems that most people are concerned about in food safety.
Do you sometimes ignore loved ones because your life is too fast and busy leaving them _______ whether you really love them?
Do you have such an annoying colleague who plays the PC music ______ he were the only one working in the office?