10.–Don’t put the waste on the ground, young man. --Oh, I’m sorry. I ____ the dustbin there.
Little ______ that we were watching his every move,so he seemed to be going his own way in this business.
When the woman was told that her husband had a car accident, her mind _____.
Color-blind people often find it difficult to _____ between blue and green.
Scientists say it may be five or six years ______ it is possible to test this medicine on human patients.
If you commit a crime, you will ____ punishment.