In their efforts to persuade us to buy that product, shopkeepers have made a close study of human nature and have __________ all our little weaknesses.
Please remember _______ the plants while I’m away.
Please excuse me _______ your letter by mistake.
After describing the planned improvements, she went on _______ how much they would cost.
The film star walked to his car, ______ a crowd of journalists.
_______ on time, this medicine will be quite effective.