The old woman lives ______ in a _____ village, but she doesn’t feel ________.
------Make sure you have turned off the air conditioners before going out.------________________.
He was about to tell me the secret __ someone patted him on the shoulder.
He is the only one of the students who __ a winner of three years.
The scientist did __ experiments to test the new drug.
These plants are watered __ .